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Highlights:
- Built for those who thrive in extreme conditions, the Master of G MUDMASTER delivers uncompromising toughness with a robust metal bezel designed to stand up to the elements.
- Created for professionals operating in the harshest environments, the G-SHOCK Master of G range is engineered with advanced durability at its core.
- The MUDMASTER pushes this further, purpose-built to perform on land where mud, dust and impact are a constant challenge.
- It's a timepiece trusted by rangers and rescue teams working at the limits.
- The GG-B100XMB-1AER takes a darker approach, with a black ion-plated stainless-steel / Bio-based carbon bezel finished to a mirror sheen that balances durability with refined presence.
- A dedicated mud-resistant filter, stainless-steel screw-back and a shock-resistant resin back cover reinforced with glass fibres work together to provide outstanding resistance to dust and mud.
- When every second counts and conditions are unpredictable, this is a watch you can rely on to support fast decisions with style.
- A black HMSD dial Casio men's watch.
- Power supply and battery life: Approx battery life 2 years on CR2025.
- Glass: Mineral glass & spherical glass.
- LED Light colour: White.
- Apps: Casio Watches.
- Time adjustment: Bluetooth connects to a smartphone and automatically adjusts the time.
- Smartphone Link feature: Mobile link (Wireless linking using Bluetooth).
- Alarm/hourly time signal: 5 daily alarms, hourly time signal.
- Calendar: Full auto-calendar (to year 2099).
- Mute feature: Button operation tone on/off.
- Accuracy: ±15 seconds per month (with no mobile link function).
- Construction: Shock resistant, mud resistant, carbon core guard structure.
- Sensor feature: Step count using a 3-axis acceleration sensor 0 to 999,999 step count display range, Power Saving Auto sensor sleep state entry after fixed period of non-activity.
- Altimeter: Measuring range: -700 to 10,000 m (-2,300 to 32,800 ft.), Measuring unit: 1 m (5 ft.).
- Hand indication graph of altitude differential, Manual memory measurements (up to 14 records, each including altitude, date, time).
- Auto log data (High/low altitudes, cumulative ascent and descent).
- Others: Relative altitude readings (±100 m /±1000 m), selectable measurement interval: 5 seconds or 2 minutes (1 second for first 3 minutes only), Changeover between metres (m) and feet (ft).
- Barometer: Measuring range: 260 to 1,100 hPa (7.65 to 32.45 inHg), Measuring unit: 1 hPa (0.05 inHg), Hand indication of pressure differential (±10 hPa).
- Atmospheric pressure tendency graph (last 20 hours or last 56 hours).
- Barometric pressure tendency information alarm (beep and arrow indicates significant changes in pressure).
- The atmospheric pressure tendency graph can show the last 20 minutes or last 56 minutes of measurements.
- The hand indication of pressure differential shows values in units of ±0.1 hPa.
- Changeover between hPa and inHg.
- Digital compass: Measures and displays direction as one of 16 points.
- Measuring range: 0 to 359°.
- Measuring unit: 1°.
- 60 seconds continuous measurement, hand indication of north, magnetic declination correction, direction calibration (2-point calibration, figure eight calibration, auto calibration).
- Thermometer: Measuring range: -10 to 60°C (14 to 140°F), Measuring unit: 0.1°C (0.2°F).
- Changeover between Celsius (°C) and Fahrenheit (°F).
- App connectivity feature: Auto time adjustment, easy watch setting, approximately 300 world time cities, life log data, mission log, location indicator, location memory, mode/display switching customization, auto altitude correction, phone finder.
- World time: 38 time zones (38 cities + Coordinated Universal Time), daylight saving on/off, Home city/World time city swapping.
- Sunrise, sunset time display: Sunrise time and sunset time for specific date.
- Stopwatch: 1/100-second stopwatch, 00'00''00-59'59''99 (for the first 60 minutes), 1:00'00-23:59'59 (after 60 minutes).
- Measuring unit: 1/100 second (for the first 60 minutes), 1 second (after 60 minutes).
- Measuring modes: Elapsed time, split time, 1st-2nd place times.
- Countdown timer: Measuring unit 1 second, countdown range 24 hours.
- Countdown start time setting range: 1 second to 24 hours (1-minute increments and 1-hour increments).
- Light: Double LED light.
- LED light for the face (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow).
- LED backlight for the digital display (Auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow).
- Other features: 12/24-hour format.
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.).
- Regular timekeeping: Analogue 3 hands (hour, minute (hand moves every 10 seconds), second), Digital: Hour, minute, second, am/pm, month, date, day.
- Case material: Bio-based carbon / Stainless-steel.
- Band: Bio-based resin band.
- Water resistance: 200-metre water resistance.
- 2 years manufacturer warranty.
| Warranty | 2 years |
| Edition | G-shock |
| Dial Colour | Black |
| Date Feature | Date display at the 3 o'clock position |
| Day Feature | Day display at the 3 o'clock position |
| Usually For | Men |
| Glass | Mineral / Spherical |
| Water Resistancy | 200 Metres |
| Case Width | 51mm |
| Case Material | Bio-based Carbon / Stainless-steel |
| Band Material | Bio-based Resin Band |
| Bezel Material | Bio-based Carbon / Stainless-steel |
| Bezel Colour | Black Bezel |
| Accuracy | °15 Seconds Per Month |
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