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Engineered for elite divers and adventure seekers, the Mk3si SKF12 PVD Ti/French Gray combines cutting-edge dive technology with premium design. Featuring a 43 mm bronze PVD titanium bezel, French gray silicone band, and air integration support, it’s built for underwater precision and surface style. With multi-GNSS, dive log syncing, and smartwatch functionality, it’s the ultimate companion for deep-sea exploration and everyday performance.Descent Mk3si SKF12 PVD Ti/French Gray- DescriptionThe Mk3si SKF12 PVD Ti/French Gray delivers advanced dive metrics, air integration, and premium materials in a compact 43 mm form. Designed for underwater accuracy and surface versatility, it’s built to perform.
Premium Dive Watch Design : Crafted with bronze PVD titanium and a sleek French gray silicone band for durability and style. Compact Yet Powerful: At 43 mm, it offers full dive functionality in a smaller, wrist-friendly profile. Air Integration Ready : Supports SubWave™ sonar technology for tank pressure monitoring and diver-to-diver messaging. Multi-GNSS Navigation: Access GPS, GLONASS, and Galileo for precise surface tracking and dive entry points. Dive Modes Galore: Includes single-gas, multi-gas, gauge, apnea, and closed-circuit rebreather (CCR) modes. Customizable Dive Screens: Tailor your dive data display to match your preferences and dive style. Dive Log Sync: Automatically syncs dive logs with the Garmin Dive™ app for easy review and sharing. Smartwatch Capabilities: Receive notifications, track fitness, and control music—all from your wrist. Rugged Build: Tested to military standards for thermal, shock, and water resistance. Long Battery Life: Enjoy up to 30 hours in dive mode and up to 10 days in smartwatch mode. Health Monitoring: Includes heart rate, Pulse Ox, sleep tracking, and stress monitoring. Touchscreen + Buttons: Intuitive interface with responsive touchscreen and physical buttons for underwater use. Wireless Connectivity: Supports Bluetooth®, ANT+®, and Wi-Fi® for seamless syncing and updates. Dive Safety Features: Features like decompression tracking and NDL alerts enhance underwater safety. Garmin Dive™ App Integration: Dive planning, community sharing, and detailed analytics at your fingertips. Stylish Everyday Wear: Its elegant bronze finish and neutral band make it suitable for both dives and dinners. Water Resistance: Rated to 100 meters, perfect for recreational and technical diving. Training & Fitness Tools: Includes VO2 max, recovery time, training load, and more for athletes. Music Storage: Store and play music directly from your watch with compatible headphones. Garmin Pay™: Contactless payments for convenience on the go. Custom Watch Faces: Personalize your display with downloadable faces from the Connect IQ™ store. Safety & Tracking: Live Track and incident detection features for peace of mind. Altimeter, Barometer, Compass: Built-in ABC sensors for outdoor navigation and dive planning. Dive Computer Replacement: Fully replaces traditional dive computers with advanced metrics and reliability. Durable Silicone Band: Comfortable, secure, and resistant to saltwater and wear. QuickFit® Band Compatibility: Easily swap bands for different occasions or activities. Advanced Sleep Tracking: Monitors sleep stages and provides insights for better recovery. Stress & Recovery Insights: Helps manage daily stress and optimize rest with real-time data. Solar Charging (Optional): Compatible with solar models for extended battery life in sunlight. Descent Mk3si SKF12 PVD Ti/French Gray - Key Features
SubWave™ Sonar Technology: Enables tank pressure monitoring and diver-to-diver communication for enhanced safety. Multi-GNSS Support: Track your location with GPS, GLONASS, and Galileo—essential for dive entry and exit. Compact 43 mm Design: Smaller form factor without sacrificing performance or display clarity. Military-Grade Durability: Built to withstand harsh environments with thermal, shock, and water resistance. Smartwatch Integration: Stay connected with calls, texts, calendar alerts, and app notifications. Health & Wellness Tracking: Includes heart rate, Pulse Ox, sleep, hydration, and stress metrics. Music On the Go: Download and play music directly from your watch—no phone needed. Garmin Pay™: Make secure, contactless payments from your wrist. Training & Performance Metrics: Track workouts, recovery, and performance with advanced fitness tools. Wireless Syncing: Connect via Bluetooth®, Wi-Fi®, and ANT+® for seamless updates and data sharing. Descent Mk3si SKF12 PVD Ti/French Gray - What's in the Box
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| Strap material | Silicone |
|---|---|
| Lens material | Sapphire crystal |
| Bezel material | Diamond-Like Carbon (DLC) Coated Titanium or Bronze PVD Coated Titanium |
| Case material | Fibre-reinforced polymer with titanium rear cover |
| QuickFit™ watch band compatible | Yes (20 mm) |
| Physical size | 43 x 43 x 14.13 mm Fits wrists with the following circumference: Silicone band: 135-230 mm Extra long silicone band: 135-355 mm |
| Weight | Mk3i w/o bands: 49.3g Mk3i w/ Silicone Band: 68.3g |
| Leakproof inductive buttons | |
| Display Size | 30.4 mm (1.2”) diameter |
| Display Resolution | 390 x 390 pixels |
| Colour display | |
| Large font option | |
| Battery life | Smartwatch: Up to 10 days (4 days always-on) Battery saver watch mode: Up to 12 days GPS Only: Up to 28 hours (22 hours always-on) All Satellite Systems: Up to 20 hours (16 hours always-on) All Satellite Systems + Multi-band: Up to 17 hours (14 hours always-on) All Satellite Systems + Music: Up to 6 hours Max Battery GPS: Up to 44 hours Expedition GPS: Up to 10 days Dive mode: up to 30 hours Dive Mode with Air Integration: Up to 15 hours |
| Charging method | Garmin proprietary clip charger |
| Memory/history | 32 GB |
| Time/date | Yes |
|---|---|
| GPS time sync | Yes |
| Automatic daylight saving time | Yes |
| Alarm clock | Yes |
| Timer | Yes |
| Stopwatch | Yes |
| Sunrise/sunset times | Yes |
| Wrist-based heart rate (constant, every second) | Yes |
|---|---|
| Resting heart rate | Yes |
| Abnormal Heart Rate Alerts | Yes (high and low) |
| Respiration Rate | Yes |
| Fitness Age | Yes (in app) |
| Body Battery™ Energy Monitor | Yes |
| All-day Stress | Yes |
| Relaxation Breathing Timer | Yes |
| Breathwork | Yes |
| Sleep | Yes (Advanced) |
| Nap detection | Yes |
| Hydration | Yes (in Garmin Connect™) |
| JET LAG ADVISER | Yes (in Garmin Connect™) |
| Health Snapshot | Yes |
| Skin temperature | Yes |
| JET LAG ADVISER | Yes |
| GPS | Yes |
|---|---|
| GLONASS | Yes |
| Galileo | Yes |
| SatIQ™ Technology | Yes |
| Garmin Elevate™ wrist heart rate monitor | Yes |
| Pulse Ox Blood Oxygen Saturation Monitor | Yes |
| Barometric altimeter | Yes |
| Compass | Yes |
| Gyroscope | Yes |
| Accelerometer | Yes |
| Thermometer | Yes |
| Ambient light sensor | Yes |
| Depth sensor | Yes |
| Connectivity | Bluetooth®, ANT+®, Wi-Fi®, SubWave™ |
|---|---|
| Connect IQ™ (downloadable watch faces, data fields and apps) | Yes |
| On-device Connect IQ™ Store | Yes |
| Smart Notifications | Yes |
| Text response/reject phone call with text (Android™ only) | Yes |
| View images from notifications on watch (Android™ only) | Yes |
| Morning report | Yes |
| Calendar | Yes |
| Weather forecasts | Yes |
| Realtime settings sync with Garmin Connect™ mobile | Yes |
| Battery Saver - customisable low power watch | Yes |
| Controls smartphone music | Yes |
| Plays and controls watch music | Yes |
| Find my phone | Yes |
| Find my watch | Yes |
| Find My Phone during GPS activity | Yes |
| Compatible with Garmin Messenger app | Yes |
| VIRB® camera remote | Yes |
| Smart trainer control | Yes |
| Compatible with Garmin Connect™ Mobile | Yes |
| Smartphone compatibility | iPhone®, Android™ |
| Stocks | Yes |
| Red shift mode | Yes |
| Garmin Share | Yes |
| Daily Suggested Workout - Running | Yes |
|---|---|
| Daily Suggested Workout - Cycling | Yes |
| Garmin Running Coach | Yes |
| Garmin Running Coach Experts | Yes |
| Garmin Cycling Coach | Yes |
| Garmin Coach - Prebuilt Cycling Plans | Yes |
| Cardio workouts | Yes |
| Strength workouts | Yes |
| HIIT workouts | Yes |
| Yoga workouts | Yes |
| Pilates workouts | Yes |
| On-screen workout animations | Yes |
| On-Screen Workout Muscle Map | Yes |
| Gym | Strength, HIIT, Cardio and Elliptical Training, Stair Stepping, Floor Climbing, Indoor rowing |
|---|---|
| Multisport | Triathlon, Swimming/Running |
| WELLNESS | Walking, Pilates, Yoga, Indoor Walking |
| INDOOR RUNNING | Treadmill Running, Indoor Track Running |
| Outdoor running | Running, Outdoor Track Running, Trail Running, Ultra Running, Obstacle Course |
| Outdoor recreation | Hiking, Indoor Climbing, Bouldering, Climbing, Hunting, Horseback Riding, Golfing, Disc Golf, Archery |
| Cycling | Biking, Road biking, Mountain Biking, Gravel biking, Bike commuting, Bike touring, eBiking, eMountain Biking, Indoor Biking, Cyclocross, BMX |
| Swim | Pool Swimming, Open Water Swimming |
| On the water | Stand Up Paddleboarding, Rowing, Kayaking, Surfing, Kiteboarding, Windsurfing, Fishing, Boating, Sailing, Sail Racing, Water Skiing, Wakeboarding, Wakesurfing, Tubing, Sailing Expedition, Whitewater, Snorkeling |
| Motor sports | Motorcycling, Overlanding, Motorcrossing, ATVing, Snowmobile |
| Racket sports | Tennis, Pickleball, Badminton, Squash, Table Tennis, Padel, Platform Tennis, Racquetball |
| Snow & Winter | Skiing, Snowboarding, Backcountry Snowboarding, XC Classic Skiing, Backcountry Skiing, Ice Skating, Snowshoeing |
| Sport profiles | Basketball, Volleyball, Field Hockey, Ice Hockey, Soccer, Football, Lacrosse, Rugby, Ultimate Disc, Cricket, Softball, Baseball |
| In the ring | Boxing, Mixed martial arts |
| Other activity profiles | Jumpmaster, Tactical, Inline Skating |
| Incident Detection during select activities | Yes |
|---|---|
| Incident detection alert on phone for wearables | Yes |
| Assistance | Yes |
| Live Event Sharing | Yes |
| Ballistics solver | Yes (unlock required) |
|---|---|
| Dual grid coordinates | Yes |
| KILL SWITCH | Yes |
| Night vision mode | Yes |
| Stealth mode | Yes |
| XERO™ Locations | Yes |
| Gaming activity | Yes |
|---|---|
| GameOn™ app compatible | Yes |
| Dive activity maximum operating depth | 200 metres |
|---|---|
| Single-gas mode | Yes |
| Multi-gas mode | Yes |
| Gauge mode | Yes |
| APNOEA mode | Yes |
| APNOEA hunt mode | Yes |
| Pool Apnea | Yes |
| Decompression model | Bühlmann ZHL-16c with gradient factors |
| Nitrox support | Yes |
| Trimix support | Yes |
| Closed Circuit Rebreather (CCR) | Yes |
| Gas mixes | Air, Nitrox and Trimix, up to 100% O2; 1 bottom gas and up to 11 deco and/or backup gases. |
| PO2 | Up to 2.0 with customisable deco PO2 setting |
| Subwave™ Support | Yes |
| Air integration | Yes (via Subwave™) |
| Number of transmitters supported | 8 |
| Gas time remaining | Yes |
| Gas consumption rate | Yes |
| Auto start/end dive | Yes |
| Custom end-dive timeout | Yes (20s to 10m) |
| Safety Stop | Yes (customisable off/3min/5min) |
| Deep Stops | Yes (using custom gradient factors) |
| Customisable conservatism | Yes (low/medium/high or custom using gradient factors) |
| Dive ascent/descent rate indicator | Yes |
| Automatic altitude adjustment | Yes |
| No fly time | Yes |
| Dive planner | Yes (basic NDL + multi-gas deco planner) |
| Tides | Yes |
| Backlight | Yes (configurable time and intensity; auto-on at depth) |
| Automatically saves dive entry and exit locations | Yes |
| Sync dive log to Garmin Dive™ Mobile app | Yes |
| Custom dive data screens | Yes |
| Alerts & alarms | Audible and vibration alarms for ascent rate, PO2, CNS/OTU, NDL, deco, gas switching, tank pressure, gas consumption rate. Customisable (up to 40) audible and/or vibration per dive mode, based on depth or time |
| 3-axis dive compass | Yes (with adjustable heading, quick change to 90R, 90L and reciprocal). Indicates degrees and direction back to set heading |
| Missed Deco Lockout | Yes (can be disabled prior to dive with user acknowledgement) |
| Residual Tissue Loading Reset | Yes (on the surface with user acknowledgement) |
| Surface diver status widget | Yes (surface interval, N2/HE loading, CNS, OTU and tissue compartment status) |
| Available boating profiles | Boating, Sailing, Sail Racing |
|---|---|
| Anchor Alarm | Yes |
| Autopilot control | Yes |
| Boat data streaming | CIQ |
| Virtual starting line | Yes |
| Countdown timer | Yes |
| Tack assist mode | Yes |
| Built-in barometer and tide tables | Yes (downloadable tides) |
| Wearable trolling motor remote | Yes |
| Step counter | Yes |
|---|---|
| Move alerts (displays on device after a period of inactivity; walk for a couple of minutes to reset it) | Yes |
| Auto goal (learns your activity level and assigns a daily step goal) | Yes |
| Calories Burned | Yes |
| Floors climbed | Yes |
| Distance travelled | Yes |
| Intensity minutes | Yes |
| TrueUp™ | Yes |
| Move IQ™ | Yes |
| Garmin Connect™ Challenges app | Yes (optional Connect IQ app) |
| Automatic rep counting | Yes |
| Customisable screen(s) | Yes |
|---|---|
| Downloadable training plans | Yes |
| Course guidance | Yes |
| HR Zones | Yes |
| HR Alerts | Yes |
| HR Calories | Yes |
| % HR Max | Yes |
| % HRR | Yes |
| Recovery Time | Yes |
| Auto Max HR | Yes |
| Race glance/widget | Yes |
| HRV Status | Yes |
| HRV stress test (measures your heart rate variability while standing still, for 3 minutes, to provide you with an estimated stress level; the scale of this is 1 to 100; low scores indicate lower stress levels) | Yes (with compatible accessory) |
| HR Broadcast (broadcasts HR data over ANT+® to paired devices) | Yes |
| Respiration Rate (During Exercise) | Yes (with compatible accessory) |
| GPS speed and distance | Yes |
| Customisable activity profiles | Yes |
| Auto Pause® automatic timer halt | Yes |
| Interval training | Yes |
| Improved interval (includes open repeats, intervals data page, rest screen and auto detection) | Yes |
| Advanced workouts | Yes |
| Power Modes - customisable in-activity battery settings | Yes |
| HRM running pace and distance | Yes |
| Auto Lap® | Yes |
| Manual lap | Yes |
| Rest timer | Yes |
| Configurable lap alerts | Yes |
| Heat and Altitude Acclimation | Yes |
| VO2 Max (Run) | Yes |
| VO2 Max (Trail Run) | Yes |
| Realtime Stamina | Yes |
| ENDURANCE SCORE | Yes |
| Load ratio | Yes |
| Training Load | Yes |
| Training load focus | Yes |
| Training Effect | Yes |
| Training Effect (Anaerobic) | Yes |
| Primary benefit (Training Effect labels) | Yes |
| Improved Recovery Time | Yes |
| Customisable alerts | Yes |
| Voice alerts | Yes |
| Finish time | Yes |
| Virtual partner | Yes |
| Race an activity | Yes |
| Multi-sport | Yes |
| Garmin Live Segments | Yes |
| Strava Live Segments | Yes |
| Round-trip course creator (running/cycling) | Yes |
| Trendline™ Popularity Routing | Yes |
| Touch and/or button lock | Yes |
| Shortcuts | Yes |
| Auto scroll | Yes |
| Activity history on watch | Yes |
| Physio TrueUp | Yes |
| Unified Training Status | Yes |
| GPS-based distance, time and pace | Yes |
|---|---|
| Running dynamics | Yes |
| Vertical oscillation and ratio | Yes |
| Ground contact time and balance | Yes |
| Stride length (real time) | Yes |
| Cadence (provides real-time number of steps per minute) | Yes |
| Running power | Yes |
| Grade-adjusted pace | Yes |
| Performance condition | Yes |
| Lactate threshold | Yes (with compatible accessory) |
| PacePro™ Pacing Strategies | Yes |
| Run workouts | Yes |
| HILL SCORE | Yes |
| Trail run auto climb | Yes |
| Race predictor | Yes |
| Course- and weather-specific race predictor | Yes |
| Foot pod capable | Yes |
| Run/Walk/Stand detection | Yes |
| Preloaded with 43,000 courses worldwide | Yes |
|---|---|
| Yardage to F/M/B (distance to front, middle and back of green) | Yes |
| Yardage to layups/doglegs | Yes |
| Measures shot distance (calculates exact yardage for shots from anywhere on course) | Automatic |
| Digital scorecard | Yes |
| Custom targets | Yes |
| Stat tracking (strokes, putts per round, greens and fairways hit) | Yes |
| Garmin AutoShot™ | Yes |
| Full vector map | Yes |
| Auto CourseView updates | Yes |
| Green View with manual pin position | Yes |
| Hazards and course targets | Yes |
| PinPointer | Yes |
| PlaysLike distance | Yes |
| Touch-targeting (touch target on display to see the distance to any point) | Yes |
| Handicap scoring | Yes |
| Tempo Training | Yes |
| Round timer/odometer | Yes |
| Automatic club tracking compatible (requires accessory) | Yes |
| Wind speed and direction (requires connection to the golf app) | Yes |
| VIRTUAL CADDIE | Yes |
| Pairs with Garmin Golf app | Yes |
| Tournament legal | Yes |
| Green Contours (with Garmin Golf membership) | Yes |
| Point-to-point navigation | Yes |
|---|---|
| Breadcrumb trail in real time | Yes |
| Back to start | Yes |
| TracBack® | Yes |
| UltraTrac mode | Yes |
| Explore Nearby | Yes |
| REFERENCE POINT | Yes |
| Up Ahead | Yes |
| NextFork™ navigation | Yes |
| Elevation profile | Yes |
| Distance to destination | Yes |
| Barometric trend indicator with storm alert | Yes |
| ClimbPro™ Ascent Planner | Yes |
| Vertical speed | Yes |
| Total ascent/descent | Yes |
| Rest Timer (Ultra Run only) | Yes |
| Auto Rest | Yes |
| Future elevation plot | Yes |
| Preloaded road and trail maps | Yes |
| Preloaded ski resort maps | Yes |
| Downloadable cartography support | Yes |
| GPS coordinates | Yes |
| Sight 'N Go | Yes |
| Area calculation | Yes (via Connect IQ™) |
| Fish forecast | Yes |
| Projected waypoint | Yes |
| Sun and moon information | Yes |
| Expedition GPS Activity | Yes |
| Tides | Yes |
| Tides Glance | Yes |
| Courses | Yes |
|---|---|
| Bike lap and lap maximum power (with power sensor) | Yes |
| Race an activity | Yes |
| Alerts (triggers alarm when you reach goals including time, distance, heart rate or calories) | Yes |
| FTP (Functional Threshold Power) | Yes (with compatible accessory) |
| Power curve and % FTP workouts | Yes |
| Garmin cycle map (routable cycling-specific street map) | Yes |
| MTB Grit & Flow | Yes |
| Advanced cycling dynamics | Yes |
| Compatible with Vector™ and Rally™ (power meters) | Yes |
| Compatible with Varia Vision™ (head-mounted display) | Yes |
| Compatible with Varia™ radar (rear-facing radar) | Yes |
| Compatible with Varia™ lights | Yes |
| Compatible with Varia headlight camera | Yes |
| Speed and cadence sensor support (w/sensor) | Yes |
| Power meter compatible | Yes |
| Power guide | Yes |
| Open-water swim metrics (distance, pace, stroke count/rate, stroke distance, swim efficiency (SWOLF), calories) | Yes |
|---|---|
| Pool swim metrics (lengths, distance, pace, stroke count, swim efficiency (SWOLF), calories) | Yes |
| Stroke type detection (freestyle, backstroke, breaststroke, butterfly) (pool swim only) | Yes |
| Drill logging (pool swim only) | Yes |
| Basic rest timer (up from 0) (pool swim only) | Yes |
| "Repeat on" rest timer (pool swim only) | Yes |
| Auto rest (pool swim only) | Yes |
| Time and distance alerts | Yes |
| Pacing alerts (pool swim only) | Yes |
| Countdown start | Yes |
| Pool swim workouts | Yes |
| Critical swim speed | Yes |
| Underwater wrist-based heart rate | Yes |
| Heart rate from external HRM (real-time during rests, interval and session stats during rests, and automatic heart rate download post-swim) | Yes (with HRM-Tri, HRM-Swim, HRM-Pro or HRM-Pro Plus) |
| Toe-to-Toe™ Challenges app | Yes (optional Connect IQ Toe-to-Toe™ Challenges app) |
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