Piercing Wishbone for Spearfishing Spearguns

The Piercing wishbone is an advanced, robust technical solution designed to optimize ballistic performance in spearfishing spearguns. The body is made from cold-drawn AISI 316 stainless steel, a process that significantly increases its mechanical strength, while the joint between the arch and the balls is ensured by the precision of TIG welding.

Technical Features and Benefits

• Ultra-short, rigid design that spaces the bands apart, reducing overlap and providing a cleaner sight line compared to Dyneema wishbones.
• 5 mm diameter balls, smaller than the traditional 8 mm, which limit band bulging near the tying point.
• The reduced ball diameter helps decrease friction on firing, improving release smoothness and accuracy.
• Compatible with shafts featuring notches and pins, without causing premature wear.
• Extremely lightweight, with a weight comparable to Dyneema wishbones, while maintaining excellent quietness during release thanks to an optimized tying method that leaves only a minimal portion of raw line exposed.

Available Versions

The Piercing wishbone is available in three different sizes (L1, L2, L3) to ensure easy installation on bands of various diameters while maintaining the same loading ergonomics:

• Piercing L2: 30 mm width, 24 mm length, ideal for 14 and 16 mm bands.
• Piercing L1: shorter version, also suitable for thick bands, tested up to a 90 kg tensile load with minimal deformation.

Applications and Use

This wishbone is perfect for spearfishing and freediving, where increasing release accuracy and smoothness is essential without compromising quietness or band durability. Its rigidity and minimal design improve tracking and aiming thanks to its reduced bulk and predictable sight-line behavior.

Piercing Wishbone for spearfishing and freediving

The Piercing wishbone is an essential and robust component, the result of advanced construction technology specifically developed for spearfishing. Its bridge is made from raw AISI 316 stainless steel, cold-drawn to ensure high mechanical strength. The spheres are joined using TIG welding, ensuring durability and reliability in the water.

Technical features and benefits

This wishbone is designed to be extremely short and rigid, allowing the correct spacing between the bands and a clean, precise sight line. Unlike Dyneema wishbones, which are soft and cause the bands to overlap, making aiming references more difficult, the Piercing keeps the bands separated, improving shot accuracy.

The wishbone is compatible with both notched shafts and shafts with pins, without causing significant wear, ensuring longer equipment life.

Ballistic efficiency and friction reduction

• The spheres have a reduced diameter of 5 mm, significantly smaller than standard 8 mm or larger spheres.
• This design limits band bulging near the tying point.
• Reduced band deformation lowers friction during the shot.
• The low weight of the wishbone helps improve ballistic performance, optimizing accuracy and smooth shaft release.

Dimensions and compatibility

The Piercing wishbone is available in three sizes (L1, L2, L3) to properly fit different band diameters, ensuring easy loading:

• Piercing L3: width 30 mm, length 32 mm, recommended for 14, 16, and 18 mm bands.

The L1 version, which is extremely short, is intended for experienced users and can also be used with large-diameter bands. It has been tested with tensile loads up to 90 kg, showing minimal deformation.

Comfort in use and quiet operation

The almost negligible weight of the Piercing wishbone is comparable to that of Dyneema wishbones, making buoyancy management in the water easier without weighing down the shaft.

Thanks to the design of the band cones, the tying leaves only a minimal portion of raw wire exposed, greatly reducing noise during the shot and ensuring quieter performance while spearfishing.

Meandros Tied Type 1 Stainless Steel Wishbone for Spearguns

The Meandros Tied Type 1 wishbone is made entirely from stainless steel, ensuring high mechanical strength and durability in marine environments. The rigid structure of the wishbone keeps the bands separated, ensuring proper parallel alignment that promotes a clean, precise sight line during spearfishing and freediving.

Technical and functional benefits

• The rigidity of the wishbone prevents the bands from overlapping, which is common with soft Dyneema versions, making aiming reference easier.
• Promotes more efficient power transfer with bands arranged in a parallel and stable position.
• Stainless steel material offers high resistance to marine corrosion and ensures long service life even under intensive use.

Technical specifications

• Material: stainless steel
• Available width: 16, 20, 25, 30, 35, and 41 mm
• Compatible with Tied Type 1 constrictor knots

Applications

This wishbone is ideal for spearfishing and freediving, where swing accuracy and smooth power transfer from the bands are essential for optimizing the shot phase and speargun control.

Meandros Tied Type 3 Stainless Steel Wishbone for Freediving and Spearfishing

The Meandros Tied Type 3 wishbone is an essential component for tying speargun bands, made entirely from stainless steel to ensure strength and mechanical resistance in the marine environment.

Its rigid structure keeps the bands spaced apart, ensuring perfect parallel alignment and a clean sight line without overlaps or interference, making aiming easier during spearfishing and freediving.

Technical Features

• Material: stainless steel for high corrosion resistance
• Rigidity that prevents the bands from overlapping, improving accuracy
• Available widths: 16, 20, 25, 30, 35, and 41 mm, to suit different band thicknesses and tying requirements

Benefits in Use

Unlike dyneema wishbones, which are softer and prone to deformation that can complicate aiming references, this Tied Type 3 stainless steel version keeps the sight line stable and clear, improving the smoothness and efficiency of speargun setup.

Choosing a metal wishbone also ensures greater durability and precision in maintaining band tension, making loading easier and ensuring consistent setup of the speargun propulsion system during freediving sessions.

Meandros Tied Type 4 Stainless Steel Wishbone for Spearfishing Spearguns

The Meandros Tied Type 4 Wishbone is made entirely from stainless steel, ensuring long-lasting strength and mechanical resistance. Its rigid design maintains the correct distance between the bands, ensuring a clean, precise sight line when loading the speargun.

Unlike Dyneema wishbones which, being soft, tend to let the bands overlap and make aiming references more difficult, the Tied Type Wishbone keeps the bands separated, making aiming faster and more accurate—an essential factor in spearfishing.

Technical Features

• Material: high-strength stainless steel
• Width: available in 6 sizes to match the speargun barrel and ensure perfect band parallelism: 16 mm, 20 mm, 25 mm, 30 mm, 35 mm, 41 mm
• Type: metal wishbone for Tied Type 4 wishbone ties

Benefits for underwater use

The rigidity and dimensional precision of the wishbone ensure optimal band power transfer, without interference caused by overlapping rubber tubing. This improves the feeling of control and the speargun’s responsiveness during spearfishing, positively affecting shot accuracy.

In addition, the stainless steel material ensures long service life and corrosion resistance in marine environments, preserving the system’s efficiency even after many uses.

Meandros Tied Type 5 Stainless Steel Wishbone for Speargun

The Meandros Tied Type 5 wishbone is an essential, rugged component made entirely from stainless steel, specifically designed for spearfishing and underwater use with spearguns. Its rigid structure keeps the bands properly spaced, ensuring a clean, precise sight line during aiming.

Compared to Dyneema wishbones, which are soft and allow the bands to overlap, making it harder to establish aiming references, the Tied Type wishbone prevents this issue, ensuring a stable setup and faster, more accurate aiming.

Technical features

• Material: Stainless steel for mechanical strength and durability in marine environments
• Rigidity: Keeps the bands spaced and parallel to optimize power transfer and shot accuracy
• Width: Variable, available in 6 sizes (16, 20, 25, 30, 35 and 41 mm) to suit different tying configurations and achieve optimal band parallelism during loading

Specific benefits for spearfishing and freediving

• Improves practicality when rigging Tied Type bands
• Provides a more stable setup and greater sight-line reliability
• Optimizes energy transfer from the bands to the shaft, ensuring a smoother, more accurate shot

Sigal Sub WIRE Wishbone for Articulated Dyneema Wishbones in AISI 316 Stainless Steel

The WIRE by Sigal Sub is a specific wishbone for articulated Dyneema wishbones, designed to ensure strength and reliability during freediving. Made entirely from AISI 316 stainless steel, this component provides high resistance to saltwater corrosion, maintaining its mechanical properties over time.

The wishbone features a hook arch made from spring steel wire, a key element for ensuring a precise sight line and optimal band alignment during loading. This design promotes clean and improved ballistic performance, with consistent parallel alignment between the bands, essential for accuracy in spearfishing.

Technical Features

• Material: AISI 316 Stainless Steel, for excellent mechanical strength and durability in marine environments
• Dimensions: 37 x 27.5 mm, compact and functional for a reduced footprint
• Weight: 12.3 grams, balanced so as not to alter the trim of the speargun

Operational Advantages

• Maintains band parallelism during loading, improving shooting power stability
• Articulated arch in spring steel for a durable and reliable connection, reducing the risk of stiff joints or deformation
• Optimized sight line and smooth handling thanks to the calibrated rigidity of the wishbone

Wishbone Wire with Bushings - Sigalsub

The Sigalsub Wishbone Wire with bushings is one of the highest-performing ballistic solutions available for spearfishing. Developed from the evolution of the "articulated wishbone" designed by Giorgio Dapiran, this articulated wishbone combines a refined technical design with top-quality materials, built for those who accept no compromises in the water.

Harmonic Stainless Steel Wire Wishbone

The attachment system uses a harmonic stainless steel wire with a breaking load of 1800 N/mm², offering the same performance characteristics as the Sandvik steel used in classic Tahitian shafts. Compared to previous systems, this material provides superior elastic return and 20% greater mechanical strength, ensuring maximum reliability on every shot.

Handcrafted Manufacturing and Quality Control

• Each wishbone is made and hand-beveled at the end section
• Individually checked with a 0.3 mm probe to verify closure and hold
• Wishbone bent outward and left open: interchangeable in case of breakage
• Design that eliminates the risk of hand lacerations if the band slips
• Greatly reduces the possibility of accidental line snagging during the shot

Dimensions and Hole Spacing

• Length: 49 mm
• Width: 35 mm
• Hole spacing: approximately 27 mm
• After the first loading, the wishbone closes: stable spacing of approximately 20–22 mm for all subsequent uses

Compatibility and Use

The with bushings version is designed for use with Ø 16 mm threaded bushing bands, ensuring a secure, precise, and stable installation on the speargun. Compatible with shafts featuring both notches and pins.

Why Choose the Wishbone Wire

Wire wishbones naturally offer the best ballistic solution among the different types of wishbones available. The open, interchangeable design of the wishbone simplifies maintenance and replacement, even in the water, without having to untie knots or disassemble the band. An ideal choice for demanding spearfishers who want the very best from their gear.

Sigal Sub Wire Energy Wishbone in Titanium for Articulated Band Assemblies

The Wire Energy wishbone by Sigal Sub is an essential component for articulated band assemblies used in spearfishing and freediving. Made entirely from titanium, it provides an optimal combination of mechanical strength and lightness, ensuring durability and reliability during underwater use.

Technical Features

• Material: titanium, for high resistance to corrosion and mechanical stress
• Dimensions: 37 x 27.5 mm, compact and functional
• Rigid structure with spring-steel wire hook for a clean sight line and precise ballistic performance
• Titanium arms that keep the bands parallel during loading

Benefits in Use

The spring-steel wire hook system helps maintain a stable, vibration-free shot line, improving accuracy when the speargun is fired. The rigidity of the wishbone enables efficient transfer of elastic energy, optimizing power and shot smoothness.

The lightness and strength of titanium promote balanced trim and greater long-term durability, essential features for spearfishing and freediving gear that must deliver consistent performance during exposure to the marine environment.

Sigal Sub XL Wishbone in AISI 316 Stainless Steel for Double- and Triple-Band Spearguns

The XL wishbone by Sigal Sub is an essential, robust component made entirely from AISI 316 stainless steel, ensuring high mechanical strength and long-lasting durability in the marine environment. Its rigid structure keeps the bands in perfect parallel alignment, which is essential for a clean, precise sight line during spearfishing or freediving.

Technical Features

• Material: corrosion-resistant AISI 316 stainless steel
• Dimensions: 52 x 47 mm (hole center-to-center distance)
• Weight: 16.7 grams
• Articulated design for greater versatility

Functional Benefits for Underwater Use

Designed for use with double- or triple-band spearguns, this wishbone keeps the bands perfectly spaced and parallel. This prevents the bands from overlapping, reducing friction and energy loss at the moment of the shot, thereby improving efficiency and accuracy in the water.

Maintaining parallel alignment between the bands contributes to a more uniform power delivery and a consistent shot line, both essential aspects of spearfishing. In addition, the strength of the material and the articulated design make installation easier and ensure long-term reliability.

Wishbone XL with Bushings - SigalSub

The SigalSub XL Wishbone with bushings is an articulated wishbone for spearguns, made entirely from AISI 316 stainless steel using 4 mm rod stock. Strong, precise, and designed to deliver maximum ballistic performance, it is the ideal choice for anyone using double- or triple-band spearguns.

Construction and Materials

Each wishbone is made from 4 mm AISI 316 Stainless Steel rod stock, hand-bent and shaped to form the engagement hook. A second bend on the arms brings the bands perfectly back in line after engagement on notches or pins. The terminal surfaces remain rounded, significantly reducing the risk of abrasion in the event of accidental release. The version with bushings includes dedicated threaded Derlin bushings (16 pitch), allowing direct use with bands with bushings.

Ballistic Performance

Thanks to its XL dimensions — 65 mm length, 51.3 mm width, and hole center distance of approximately 47 mm — this wishbone keeps the bands perfectly spaced and parallel during loading. This prevents the rubber bands from overlapping, eliminating unnecessary friction and energy loss during the shot, for a consistently clean and precise sight line.

Recommended Use

• Ideal on double- or triple-band spearguns, paired with a narrower wishbone (wire or classic style)
• Also compatible with single-band spearguns, making it easier to engage and slide the hands out
• Pairing with wishbones of different widths to keep the bands perfectly spaced and parallel
• Compatible with shafts with notches or pins

Technical Specifications

• Material: Stainless Steel AISI 316
• Rod diameter: 4 mm
• Dimensions: 65 mm (length) × 51.3 mm (width)
• Hole center distance: approx. 47 mm
• Weight: 16.7 g
• Bushings included: in Derlin, 16 pitch thread, Ø 16 mm
• Compatibility: bands with bushings and tied-in bands

Green 32 Salvimar Lubricating Oil for Pneumatic Spearguns

Green 32 Salvimar Lubricating Oil is specifically formulated for maintaining the mechanical parts of pneumatic spearguns for spearfishing and freediving. Its low-viscosity composition ensures effective lubrication without weighing down the components, guaranteeing smoothness and precision in the speargun’s operation.

Its anti-wear and antioxidant properties protect moving parts from mechanical wear and corrosion, preserving the speargun’s durability and efficiency over time. This oil enables quick, practical maintenance, essential for keeping performance and safety unchanged in the water.

The product comes in a practical 100 ml bottle, ideal for precise, controlled application.

Drilled Beads for Dyneema Wishbones

This pair of drilled beads is designed for building dyneema wishbones used in freediving and spearfishing. Made of brass, they provide high mechanical strength and long-lasting durability, even in the marine environment.

The beads feature a through-hole with two different diameters, allowing the line to pass through on one side and the stopper knot to seat on the other, making it easier to assemble dyneema wishbones in dyneema precisely and securely.

This system allows circular bands to be assembled quickly and easily, ensuring a stable and comfortable connection during freedives.

Salvimar Deeper Freediving Computer

The Deeper computer represents the evolution of the well-known One freediving computer, recognized for its simplicity and functionality. Designed by Salvimar with attention to every detail, it provides a reliable, practical, and intuitive accessory for freediving and spearfishing.

Technical Features and Functions

• Real-time display during the dive of essential data such as maximum depth, average depth, dive time, water temperature, and surface time.
• Programmable alarm with alerts for up to 5 different depth levels reached, useful for safely monitoring dives.
• Stores data for up to 99 dives per day for a maximum of 30 consecutive days, providing an extensive history of freediving sessions.

Design and Materials

• Octagonal dial optimized to improve visibility and readability underwater.
• Glass-filled nylon case, offering an effective combination of light weight and mechanical strength.
• Four oversized buttons, specifically designed for easy operation even with thick gloves, ensuring practicality and immediate control underwater.
• Thermoplastic strap longer than previous versions, for improved fit even over thicker wetsuits.
• Available color: black.

The Deeper computer is therefore an ideal technical instrument for freedivers and spearfishers who require precise, comprehensive monitoring of their dives, combined with a rugged, functional structure for underwater use.

Deeper Computer for Freediving and Spearfishing

The Deeper computer is the advanced version of the well-known One freediving computer, valued for its ease of use and reliability. Designed and manufactured by Salvimar with meticulous attention to detail, it provides a practical and functional tool for divers specialized in freediving and spearfishing.

Technical and Functional Features

• Display with an octagonal dial shape, optimized for improved visibility and easy reading during dives.
• Case made of glass fiber-reinforced nylon, ensuring mechanical strength and light weight.
• Four oversized buttons, designed for use with thick gloves, improving practicality and comfort in the water.
• Extended thermoplastic strap, suitable for wearing over thick wetsuits, ensuring a secure and stable fit.

Dive and Monitoring Functions

During dives, the Deeper provides essential real-time data such as:

• Maximum depth reached
• Average dive depth
• Dive duration
• Water temperature
• Surface interval between dives

It is also equipped with a configurable alarm system, capable of signaling up to 5 different depth levels during the dive, providing precise support for underwater safety control.

Memory and Data Management

The device can store up to 99 daily dives for a maximum of 30 consecutive days, allowing detailed and continuous monitoring of underwater activity without the need for frequent data downloads.

Garmin Descent G2 Amoled: Dive Computer and Multisport Smartwatch

Descent G2 Amoled is a compact, lightweight dive computer designed to meet the needs of freedivers and spearfishers. Featuring a 1.2" Amoled touchscreen display with an ultra-durable sapphire glass lens, it ensures excellent visibility and durability underwater. The silicone strap provides comfort and adaptability during underwater activities.

Technical Features and Functions for Freediving and Spearfishing

• Water resistance to 100 meters, suitable for most freediving and spearfishing sessions.
• Customizable dive modes with options for single gas, multi-gas (nitrox and trimix), freediving, spearfishing, rebreather, and basic mode to adapt to different dive profiles.
• Multi-GNSS system on the surface: integration of GPS, Galileo, and Glonass to accurately detect and save water entry and exit points.
• Detailed display of the descent and ascent graph for each dive, essential for monitoring the speed and smoothness of underwater movements.
• Dive Readiness function: assesses the freediver’s physical status by monitoring sleep quality, stress levels, exercise, and jet lag, supporting proper preparation for the dive.

Monitoring and Safety

• Advanced sensors included: Garmin Elevate™ wrist heart rate technology, barometric altimeter, compass, gyroscope, accelerometer, thermometer, depth sensor, and pulse oximeter with acclimation function.
• Continuous heart rate monitoring with alerts for abnormalities and 24/7 respiration rate tracking.
• Tracking of blood oxygen saturation, Body Battery energy, stress, sleep, and relaxation reminders—key elements for managing underwater wellness.
• Safety features with individual and group LiveTrack, real-time sharing, and assistance for support during dives.

Connectivity and Smart Features

• Compatible with iPhone and Android devices, with Bluetooth® Smart and ANT+™ connectivity for syncing and data management.
• Smart notifications, calendar, weather forecasts, and integrated Garmin Pay for complete day-to-day management even out of the water.
• Ability to view real-time tide, wave, and wind data via smartphone connection for efficient planning of underwater activity.

Battery and Battery Life

The device features a rechargeable battery with up to 27 hours in dive mode, 20 hours in GPS mode, and up to 10 days in smartwatch mode, ensuring long battery life for extended freediving sessions and multisport activities.

Color: Black.

For further technical details: Garmin Descent G2 Amoled Specifications

Garmin Descent G2 Amoled – Dive Computer and Multisport Smartwatch

Descent G2 Amoled is a dive computer designed by Garmin that combines technical precision with advanced features, suitable for freediving, spearfishing, and other underwater profiles. The device is lightweight, compact, and equipped with a 1.2" Amoled touchscreen display with an ultra-durable sapphire glass lens, ensuring excellent visibility and impact resistance.

Technical Features and Materials

• Water resistance up to 100 meters deep, suitable for freediving and spearfishing.
• Silicone straps for improved comfort and durability in marine environments.
• Amoled display that ensures high definition and readability in low-light conditions.
• Integrated sensors: Garmin Elevate™ wrist-based heart rate, barometric altimeter, electronic compass, gyroscope, accelerometer, thermometer, depth sensor, and pulse oximeter.

Features for Freediving and Spearfishing

• Customizable dive mode: single and multiple gas (including nitrox and trimix), freediving, spearfishing, rebreather, and basic mode.
• Display and recording of the descent and ascent speed graph for each dive, making post-dive analysis easier.
• Multi-GNSS system (GPS, Galileo, Glonass) for precise geolocation of entry and exit points on the surface.
• Dive Readiness feature that assesses your pre-dive physical condition by analyzing sleep quality, stress, exercise, and jet lag.

Health Monitoring and Smart Features

• Continuous heart rate monitoring with alerts for abnormalities and 24/7 respiratory rate tracking.
• Blood oxygen saturation (SpO2) measurement and body energy monitoring (Body Battery).
• Stress tracking, relaxation reminders, and sleep quality analysis to improve dive preparation.
• Smart notifications with Bluetooth® Smart and ANT+™ connectivity, compatible with iPhone and Android devices.
• Additional safety features: individual and group Livetrack, real-time data sharing, and assistance functionality.

Battery Life and Management

The rechargeable Battery provides up to 27 hours of battery life in dive mode, 20 hours with GPS active, and up to 10 days in smartwatch mode, ensuring extended and reliable use during underwater and training sessions.

Data Access and Dive Planning

The device can be synced with your smartphone via Garmin Connect™ and the Garmin Dive app, enabling detailed management of dive data and real-time access to information on tides, waves, and wind. The interface also allows you to plan and select the most appropriate dive mode for each underwater activity.

Available color: Pamplona.

Garmin Descent MK3: Dive Computer and Multisport Smartwatch

Garmin Descent MK3 is the compact, technologically advanced evolution of the MK2 model, designed specifically for freediving, spearfishing, and underwater diving. Equipped with a 1.2-inch color AMOLED display with 390x390 pixel resolution and sapphire glass, it delivers a clear interface and instant readability of underwater data.

Technical Features and Dive Functions

• GPS and full-color DiveView maps with depth contours and dive spots for precise underwater navigation.
• Configurable dive modes: single and multiple gas (including nitrox and trimix), freediving, spearfishing, rebreather, and basic mode.
• Water resistance to depths of up to 200 meters.
• Dive compass, tide tables, and integrated barometer for monitoring the underwater environment.
• 32 GB internal memory with storage capacity for up to 200 dives, syncable with Garmin Connect™ and the Garmin Dive app for data analysis and sharing.
• Readiness technology that evaluates sleep quality, stress levels, and physical activity to indicate the most suitable time for diving.

Construction, Materials, and Design

The Descent MK3 features a bezel made of stainless steel, ensuring high mechanical resistance and a durable structure even in marine environments. The silicone strap provides comfort and a secure fit during in-water activities. Its combination of light weight and ruggedness makes this dive computer suitable for both everyday and underwater use.

Smart Features and Health Monitoring

• Full-featured smartwatch with Elevate™ 2 wrist-based heart rate monitoring and dedicated multisport profiles, including running, cycling, swimming, trail running, rowing, cross-country skiing, triathlon, and many other activities.
• Continuous monitoring of physiological metrics such as heart rate, respiratory rate, blood oxygen saturation, stress level, sleep quality, and Body Battery energy.
• Advanced connectivity: Bluetooth® Smart, ANT+™, Wi-Fi®, compatible with iOS and Android, with smart notifications, music control with internal storage for up to 2000 songs, and Garmin Pay for contactless payments.

Battery Life and Runtime

• Up to 30 hours of runtime in dive mode.
• 20 hours in GPS mode.
• 10 days in smartwatch mode.
• 50 days in basic watch mode.

Integrated Sensors

• Barometric altimeter
• Digital compass
• Gyroscope and accelerometer
• Thermometer
• Depth sensor
• Pulse oximeter for acclimation

Garmin Descent MK3 is a complete solution for freediving, spearfishing, and recreational diving enthusiasts who require a reliable, precise device packed with technical data to support every dive and underwater sport activity.

Garmin Descent MK3i – Multi-Purpose Freediving and Spearfishing Dive Computer

Descent MK3i is a dive computer with a compact design, specifically engineered for freediving, spearfishing, and freediving activities, while also offering excellent versatility for everyday use. Equipped with built-in GPS and full-color DiveView maps with depth contours and dive spots, it makes navigation easier and provides precise tracking of entry and exit points during dives.

Technical Features and Materials

• Titanium case for maximum mechanical strength and light weight
• 1.4-inch AMOLED display, 454x454 pixels, for crisp readability in all conditions
• Highly scratch-resistant sapphire crystal lens protection
• 32 GB internal memory with data storage capacity for up to 200 dives
• Water resistance guaranteed down to a depth of 200 meters
• Silicone strap for a comfortable, long-lasting fit during underwater activity

Dive Modes and Advanced Features

Descent MK3i supports multiple dive modes:

• Single and multiple gas, including Nitrox and Trimix
• Freediving and spearfishing, optimized to monitor discipline-specific parameters
• Rebreather and basic mode

It also integrates innovative technologies such as Readiness, which evaluates sleep quality, stress, and physical activity to suggest the optimal time to dive.

Device Integration and Communication

When paired with the Descent™ T2 transceiver (sold separately), it enables Garmin Sonar Network SubWave and Air Integration functions, allowing you to:

• Communicate via preset messages with other Garmin dive computers
• Monitor tank pressure, usage trends, remaining time, and other essential data
• Manage up to 8 tanks within a 10-meter range

Sensors and Health Monitoring

• Garmin Elevate™ 2 wrist-based heart rate monitor with continuous tracking
• Barometric altimeter, dive compass, gyroscope, and accelerometer for precise orientation
• Built-in thermometer and depth sensor
• Pulse Ox for acclimation and blood oxygen saturation monitoring
• Body Battery energy tracking, stress monitoring, respiration rate, and sleep quality

Navigation and Smart Features

• High-sensitivity GPS, GLONASS, and Galileo receivers for surface navigation
• Multi-region topographic maps and Skiview maps
• Advanced features such as PacePro, RoundTrip routing, and turn-by-turn directions
• Bluetooth®, ANT+™, and Wi-Fi® connectivity for syncing and data downloads
• Support for smart notifications, calendar, weather, music control, and Garmin Pay
• Compatible with iOS and Android devices via the Garmin Connect™ and Garmin Dive apps for analysis and sharing

Battery Life

• Up to 66 hours in dive mode
• 48 hours with all satellite systems and Multi-Band enabled
• 25 days in smartwatch mode
• 31 days in standard watch mode

Sports and Multisport Activities

In addition to underwater use, the Garmin Descent MK3i includes multisport profiles for running, cycling, swimming, trail running, rowing, triathlon, and other activities, including indoor training, hiking, SUP, and skiing, ensuring precise tracking and comprehensive data for every sport.

Garmin Descent MK3i - Multi-Purpose Dive Computer for Freediving and Spearfishing

Descent MK3i is an advanced dive computer designed for freediving, spearfishing, and underwater activities, featuring a compact size and new smart functions to integrate seamlessly into everyday life and in the water.

Main Technical Features

• 1.4-inch AMOLED display in color with 454x454 pixel resolution for optimal readability underwater, protected by scratch-resistant sapphire glass.
• Titanium case to ensure light weight and mechanical strength during underwater activity.
• Water-rated to 200 meters, suitable for freediving and spearfishing with customizable dive modes.
• 32 GB internal memory to store data from approximately 200 dives, with export and analysis options via Garmin Connect™ and the Garmin Dive app.
• Battery life up to 66 hours in dive mode, 48 hours with satellite systems active, and up to 31 days in smartwatch mode.

Underwater Functions and Navigation

Descent MK3i supports dive modes for single and multiple gases (nitrox and trimix), freediving, spearfishing, rebreather, and basic mode. It features GPS and color DiveView maps with depth contours, dive sites, and a compass to make underwater orientation and surface navigation easier.

• High-sensitivity GPS, GLONASS, and Galileo receivers to automatically save dive entry and exit points.
• Detailed dive log with the ability to monitor parameters such as depth, time, and dive profile.
• Integrated SATIQ technology and topographic maps for multiple continents.

Technological Innovations

• Readiness Technology: analyzes parameters such as sleep quality, stress, and physical activity to assess physical condition and suggest the best time to dive.
• Integration with the Descent™ T2 transceiver for SubWave communication and monitoring of up to 8 tanks at a distance of 10 meters, including pressure parameters and usage trends.

Monitoring and Smart Functions

• Elevate™2 wrist-based heart rate detection for continuous monitoring of heart rate and blood oxygen saturation.
• Complete health monitoring: 24/7 respiration rate, Body Battery energy level, stress level, sleep quality.
• Multisport functions for activities such as running, cycling, swimming, trail running, and triathlon, with specific profiles for indoor and outdoor workouts.
• Smart notifications, Bluetooth®, ANT+™, Wi-Fi® connectivity, music control, Garmin Pay, and automatic uploads via the Garmin Connect™ Mobile app.

Integrated Sensors

• Barometric altimeter
• Digital compass
• Gyroscope and accelerometer for accurate motion detection
• Thermometer and depth sensor
• Pulse oximeter acclimation

Construction and Design Details

The device features a titanium strap and a Carbon Gray colorway, combining strength and light weight while ensuring comfort throughout the day and underwater.

Garmin Descent MK3i: multi-use computer for freediving and underwater activities

Descent MK3i is a compact dive computer with built-in GPS and full-color DiveView maps showing depth contours and dive spots, providing precise support during freediving and spearfishing sessions. The underwater compass, tide table, and barometer support detailed orientation and dive planning.

Technical features and dive functions

• Durable titanium case with sapphire crystal lens protecting the large 1.2” AMOLED display (390x390 pixels), for optimal readability even in low-light conditions.
• Depth Gauge with resistance down to 200 meters.
• Configurable dive modes: single and multiple gas (nitrox, trimix), freediving, spearfishing, rebreather, gauge mode.
• Integration with the Descent T2 transmitter (sold separately) for communication via the Garmin Sonar Network SubWave network, allowing preset message exchange and monitoring of up to 8 tanks with pressure display, usage trend, and remaining times within a 10-meter range.
• 32 GB internal memory for storing and analyzing up to 200 dives, with synchronization and sharing via Garmin Connect™ and the Garmin Dive app.
• Advanced management through Readiness technology, which assesses sleep quality, stress, and physical activity to suggest the optimal time for freediving or spearfishing.

Health monitoring and multisport use

Descent MK3i integrates advanced detection and monitoring systems for freediving and underwater activities:

• Continuous heart rate monitoring with Elevate™ 2 technology
• 24/7 respiratory rate detection and blood oxygen saturation (SpO2)
• Stress tracking, sleep quality, and Body Battery for managing personal energy

In addition to underwater functions, it supports multisport profiles for running, cycling, swimming, trail running, rowing, triathlon, and many other disciplines, making it easier to manage daily sports activity in an integrated way.

Smart features and connectivity

• Bluetooth® Smart, ANT+™ and Wi-Fi® connectivity for data synchronization and updates.
• Smart notifications, calendar, weather, music controls with built-in storage for up to 2000 songs.
• Compatible with iPhone and Android devices for management via the Garmin Connect™ Mobile app.
• Garmin Pay for contactless payments directly from the device.

Battery life and comfort

The battery provides up to 66 hours of battery life in dive mode and 48 hours with all satellite systems active (GPS, Glonass, Galileo). In smartwatch mode it can last 25 days, and 31 days as a basic watch.

The silicone strap combines comfort and durability, with a French Gray finish for a clean, functional design.

Salvimar Freedive Computer for Freediving and Spearfishing

The Salvimar Freedive is a computer specifically designed for Freediving and spearfishing, ideal for precise dive management down to 100 meters deep. The instrument integrates a high-precision depth sensor with updates every 0.5 ms, ensuring accurate and reliable measurement during descent and ascent.

Technical Functions and Monitored Data

• Real-time water temperature calculation to monitor underwater environmental conditions
• Accurate dive time measurement to optimize Freediving management
• Surface time monitoring to plan proper recovery intervals between dives
• Complete storage of data for each dive, useful for analysis and technique improvement

Safety and Comfort

The device was developed to help protect freedivers from taravana and pulmonary edema, two critical conditions linked to hypoxia and sudden pressure changes during dives. This protection is provided by an integrated alarm system, an exclusive Salvimar sensor that promptly alerts the freediver in the event of safety-related anomalies.

To ensure a secure and comfortable fit during dives, the computer is equipped with an oversized strap that improves adaptability and stability on the wrist, even during intense movement in the water.

Cressi Nepto Black Computer for Freediving and Spearfishing

The Nepto Black is an underwater computer developed by Cressi, designed specifically for freediving and spearfishing. The rugged 48 mm-diameter case and scratch-resistant mineral glass protect the watch from hydrostatic pressure, ensuring mechanical strength even during the most demanding dives.

Technical features and functions

The Nepto features a 35 mm high-contrast display, designed to provide optimal readability in all diving conditions. The interface is simple and intuitive, allowing easy navigation through the menu even underwater.

• Real-time display of water temperature, dive time, and session duration
• Monitoring of maximum descent and ascent speed
• Setup of customizable alarms for depth, hydration, surface time, and recovery

Protection against the onset of dive-related conditions

The device integrates an exclusive Cressi algorithm designed to help prevent the risk of taravana and pulmonary edema, conditions specifically associated with freediving.

Battery and ease of use

• User-replaceable Battery for longer autonomy and convenience
• SLEEP mode to optimize power consumption during periods of non-use

Aesthetic features and availability

The Nepto is available in three colors: Black, Blue, and Green, allowing you to choose the look that best suits your preferences and operating conditions.

Cressi Nepto Blue Freediving Computer

The Nepto Blue is a dedicated computer for freediving and spearfishing designed by Cressi, featuring a rugged case and a scratch-resistant mineral glass face, built to withstand high underwater pressures.

Safety Functions and Specific Algorithm

Nepto integrates an advanced algorithm developed by Cressi to help protect freedivers, designed to reduce the risk of taravana and pulmonary edema. These features continuously monitor critical parameters during the dive, providing specific alarms for enhanced safety.

Display and Interface

The computer is equipped with a 35 mm high-contrast display and an intuitive menu that makes it easy to navigate and check information in any underwater condition.

Monitored Parameters

• Water temperature
• Dive time
• Freediving session duration
• Countdown timer for time management
• Maximum descent and ascent speed indication

Customizable Alarms

Nepto allows you to set several alarms during the session, including:

• Maximum reachable depth
• Hydration alarm
• Surface time
• Recovery time

Additional Technical Features

• User-replaceable battery for simple, independent maintenance
• SLEEP mode to optimize battery life
• Compact 48 mm case diameter, ideal for freediving
• Available in the following color versions: Black/Blue, Black, and Green

Cressi Nepto Green Freediving and Spearfishing Computer

Nepto Green is a watch-style computer designed by Cressi specifically for freediving and spearfishing, integrating dedicated features for safety and dive monitoring.

Technical Features

• Robust, compact 48 mm case, built to withstand the high pressures typical of freediving descents.
• Dial protected by scratch-resistant mineral glass to ensure durability and readability in underwater conditions.
• 35 mm high-contrast display with an intuitive interface, optimized for easy use even underwater.
• Display of essential parameters: water temperature, dive time, session duration, maximum descent and ascent speed, countdown timer for managing breath-hold duration.
• User-replaceable Battery with SLEEP mode to extend battery life during days in the water.

Specific Safety Functions

Nepto incorporates an algorithm developed by Cressi to monitor and reduce the risk of taravana and pulmonary edema, two conditions of particular concern in freediving and spearfishing contexts.

• Customizable alarms for depth, surface time, hydration, and recovery time, which can be activated during the dive session.

Ergonomics and Use

The combination of compact size and display readability makes Nepto effective at providing all necessary information without interfering with smooth underwater movement.

Available in several color variants: Green/Black, Black, and Blue, to suit the individual preferences of freedivers.

Salvimar One Plus Computer for Freediving and Spearfishing

The Salvimar One Plus computer integrates advanced digital functions specifically designed for underwater activities such as freediving and spearfishing. It offers time, date, stopwatch, countdown timer, alarm, and second time zone, combining everyday practicality with technical functions dedicated to diving.

Technical Functions for Diving

Equipped with updated software, the device allows real-time monitoring of key parameters during freediving: dive duration, recovery time, depth reached, and water temperature. This data is essential for safe, informed dive management.

The internal memory stores all data for each individual dive, allowing you to analyze dive sessions and optimize performance in the water.

Materials and Construction

• Durable nylon case, lightweight and long-lasting
• Plastic strap suitable for use in saltwater
• Satin-finished steel bezel for greater protection and durability
• Four ergonomic buttons for simple, precise adjustment of settings even in humid conditions or with wet hands

Battery and Maintenance

The battery provides long autonomy for extended periods of use. Replacement must be performed exclusively by authorized Salvimar dealers in order to keep the warranty valid and ensure proper device functionality.

Smart Freediving: Computer for Freediving and Spearfishing

The Smart Freediving is a dive computer specifically designed for freedivers and spearfishers who need a reliable, functional instrument during their dives.

Main Technical Features

• LCD display with high readability for easy access to information in the water.
• Instant measurement of depth, dive time, recovery time, and temperature.
• Detection of descent and ascent speed, essential for controlling progression in freediving.
• Customizable alarms including parameters such as depth, dive time, speed, recovery time, and hydration, for detailed and safe monitoring.
• Very frequent data sampling intervals with measurements every second, ensuring highly accurate logs.
• Extended memory capacity to store multiple underwater sessions and firmware update capability to keep the device always up to date.

Benefits for Freediving and Spearfishing

The Smart Freediving computer is designed to optimize dive management, allowing accurate and detailed control of all key parameters for safety and efficiency in freediving. Thanks to its ease of use and the clarity of the information provided, the device makes it easier to immediately assess dive conditions and respect the recovery times essential in freediving.

Design and Ergonomics

The model is available in gray/black, with a functional, durable design intended for use in underwater environments. The lightweight construction and easy-to-read display increase comfort during dives.

Smart Apnea: Freediving Computer for Freedivers and Spearfishers

The Smart Apnea is a freediving computer designed to meet the needs of freedivers and spearfishers who require accuracy and ease of use. The interface with LCD display ensures immediate, clear readability of all essential information during the dive.

Main Technical Features

• Instant measurement of depth, dive time, recovery time, and temperature.
• Calculation of descent and ascent speed, with updates every second for accurate monitoring of the dive pace.
• Customizable alarms based on different parameters: depth, dive time, descent and ascent speed, recovery time, and even hydration.
• Depth sensor with advanced technology, ensuring precise and reliable readings.
• Large internal memory for storing dive data and sessions, with upgradeable firmware to keep the device aligned with the latest features.

Design and Materials

Available in the practical orange/black color combination, the Smart Apnea is designed to provide comfort and visibility during dives. Its rugged yet lightweight construction makes it easy to use even in demanding spearfishing and freediving conditions.

Benefits

• Ease of use thanks to the intuitive interface and accessible functions.
• Continuous monitoring updated every second, allowing you to optimize dive progression and reduce risks related to ascent speed.
• Alarm customization to adapt to the specific needs of the freediver or spearfisher.
• Reliable recorded data that supports informed decisions during every phase of the dive.

Suunto D5 All Black - Freediving Dive Computer

Suunto D5 is a freediving computer designed to ensure ease of use and reliability during spearfishing and freediving dives. The device features a high-contrast color display that provides clear, sharp readability of essential data throughout the dive profile.

Features and operating modes

The three-button control system allows smooth navigation through settings and operating modes. Three selectable navigation modes are available and can be customized via the dedicated app, letting you adapt the functions to the specific needs of the freediver or spearfisher.

After the dive, you can connect the Suunto D5 to the Suunto app wirelessly via Bluetooth to review dive profiles, analyze data, and share results with other enthusiasts or instructors.

Technical specifications

• Dimensions: 53 x 53 x 16.3 mm
• Weight: 90 g
• Bezel: Stainless steel for greater mechanical strength
• Crystal: Mineral, resistant to scratches and impacts typical of the underwater environment
• Case: Reinforced composite material for an optimal balance of lightness and durability
• Strap: Silicone, designed to ensure comfort and a secure fit during dives

Included accessories

• Charging cable
• Quick start guide
• Safety information
• Anti-scratch film for the display
• International warranty certificate
• Suunto sticker

For further technical details and updates, visit the official Suunto website.

Garmin Descent MK3i: Multifunction Freediving and Spearfishing Dive Computer

Descent MK3i is a dive computer equipped with advanced features for freediving, spearfishing, and freediving activities, designed to provide complete control and accurate data during underwater use.

Technical Features and Materials

The case is made of Titanium, a material known for its light weight and mechanical strength, while the 1.2-inch full-color AMOLED display offers a resolution of 390x390 pixels, ensuring clear, immediate readability even in low-light conditions, protected by scratch-resistant sapphire glass.

Advanced Underwater Features

• Supports single-gas and multi-gas dive modes, including nitrox and trimix, as well as dedicated modes for Freediving, spearfishing, rebreather, and gauge mode.
• Operating depth up to 200 meters.
• Built-in GPS with full-color DiveView maps, including depth contours and dive sites, plus automatic logging of water entry and exit points.
• Integrated dive compass and barometer for precise orientation and monitoring of environmental conditions.
• 32 GB internal memory capable of storing up to 200 dives, with analysis and sharing via Garmin Connect™ and the Garmin Dive app.
• Compatible with the Descent™ T2 transceiver (sold separately) for communication via Gramin Sonar Network SubWave: exchange of preset messages and monitoring of up to 8 tanks within 10 meters.

Biometric Monitoring and Readiness Assessment

The device integrates Readiness technology, which processes data related to sleep quality, stress level, and physical activity to independently assess overall physical condition, suggesting the optimal time for a dive. The Elevate™ 2 heart rate sensor provides continuous wrist-based heart rate monitoring with custom alerts, along with monitoring of oxygen saturation, respiratory rate, stress, sleep, and Body Battery energy levels.

Smart and Sports Features

• Complete multisport mode for running, cycling, swimming, trail running, rowing, cross-country skiing, triathlon, SUP, climbing, and many other activities.
• Advanced connectivity with Bluetooth® Smart, ANT+™, Wi-Fi®, and iPhone and Android compatibility for Smart Notifications, automatic synchronization with Garmin Connect™ Mobile, and music control (up to 2000 songs).
• Advanced navigation features: high-sensitivity GPS, Glonass, and Galileo receivers, SATIQ technology, multi-region topographic maps, PacePro, turn-by-turn navigation, and RoundTrip routing.
• Safety features such as LiveTrack, real-time sharing, and assistance.

Battery Life and Comfort

The Battery provides up to 30 hours in dive mode, 20 hours in GPS mode, 10 days in smartwatch mode, and up to 50 days in watch mode, ensuring extended runtime for long periods of use.

The silicone strap ensures comfort and flexibility in the water while maintaining the durability required for underwater activities.

Summary Specifications

• Case material: Titanium
• Display: AMOLED 1.2" 390x390 px, sapphire glass
• Operating depth: 200 meters
• Dive modes: Gas mix, Freediving, spearfishing, rebreather, gauge mode
• Internal memory: 32 GB for 200 dives
• Connectivity: Bluetooth, ANT+, Wi-Fi, smartphone compatibility
• Battery: up to 30 hours dive mode, 20 hours GPS
• Strap: Silicone
• Color: Carbon Gray

Rubber Pads for Chest Loading Pad - ConteSub

The ConteSub rubber pads are essential components for anyone building or customizing their own spearfishing speargun. Made from 5 mm thick high-density rubber, these pads are designed for creating the chest loading pad and the handle base, providing a secure, stable, and protective contact point during loading.

Versatility and Easy Installation

Each pair of pads is supplied oversized, so it can be freely cut and shaped to match the exact dimensions of your speargun. This feature makes them suitable for any speargun, whether during building, maintenance, or upgrading.

• High-density rubber for maximum strength and long-lasting durability
• 5 mm thickness for a comfortable and stable chest loading support
• Easy to cut and shape to size with standard workshop tools
• Suitable for both the chest loading pad and the handle base
• Supplied with 4 stainless steel self-tapping screws for installation
• Saltwater-resistant materials built to withstand marine conditions

Professional Component for DIY Spearguns

Whether it is a ConteSub semi-finished speargun or a custom project, these pads are the professional solution for ensuring reliable chest loading support when loading the speargun. The high-density rubber protects the wetsuit during loading and ensures a firm, secure grip in all conditions.

Fast HD Carbon Blade

The H. Dessault Fast HD is a lightweight and durable carbon blade, designed to deliver efficiency and comfort in all types of spearfishing. Made with Japanese T700 Superforce carbon, it ensures high elasticity and superior mechanical strength—essential features for a smooth, effective fin stroke.

Technical Features

• Blade length: 86 cm, providing a larger thrust surface and optimal power transfer during freediving
• Stiffness available in three options: 25 Soft, 30 Medium, and 40 Hard, to suit different needs
  
• Elastic-K10 black water rails to improve tracking and stability in the water
• Weight starting from 700 grams, ensuring lightness and agility
  

Benefits for Spearfishing

The combination of T700 carbon with the rail-free foot pocket and Elastic-K10 water rail structure gives the Fast HD outstanding hydrodynamic efficiency and lightness, improving the fluidity and precision of the fin stroke. This reduces the effort required and allows the spearfisher to maintain a more natural posture and greater bottom time.

Applications

The Fast HD fins are suitable for spearfishing and freediving, offering an optimal balance of power and comfort. The range of available stiffnesses lets you choose the most suitable blade based on the spearfisher’s profile and the intensity of the fin stroke required.