The G-Shock MASTER OF G MUDMASTER Twin Sensor GG1000-1A is a rugged timepiece designed for the toughest adventures. With a sturdy 56.2 × 55.3 × 17.3mm case featuring a combination of resin and stainless steel, and weighing 94g, it's mud and shock-resistant, with a water resistance of 200 meters. Powered by SR927W X 2 batteries, it lasts approximately 2 years. Key features include a digital compass with hand indication of north, bidirectional calibration, thermometer, world time, stopwatch, timer, and 5 daily alarms with a snooze option. With LED backlighting, full auto-calendar, mute feature, and battery alerts, it offers both analogue and digital displays in 12/24-hour formats, ensuring accurate timekeeping in any situation.- 56.2 × 55.3 × 17.3mm Case Size- 94g Weight- Resin/Stainless steel Case and Bezel- Resin Band- Mud Resistant- Shock Resistant- 200 Meters Water Resistant - Approx. battery life: 2 years on SR927W X 2- Sensor feature: Digital compass (NORTH) Hand indication of north (20 seconds continuous measurement)*Measures and displays direction as one of 16 points*Measuring range: 0 to 359°*Measuring unit: 1°- Bidirectional calibration- Magnetic declination correction- Bearing memory- Thermometer*Display range: -10 to 60℃ (14 to 140℉)*Display unit: 0.1℃ (0.2℉)- Mineral Glass- World time: 31 time zones (48 cities coordinated universal time), daylight saving on/off- Stopwatch- Timer- Alarm/hourly time signal: 5 daily alarms (with 1 snooze alarm)- LED backlight (Super Illuminator) Auto light switch, selectable illumination duration (1.5 seconds or 3 seconds), afterglow- Calendar: Full auto-calendar (to year 2099)- Mute feature: Button operation tone on/off- Battery display/alert- Low battery alert- Accuracy: ±15 seconds per month- 12/24-hour format- Regular timekeeping:*Analog: 3 hands (hour, minute (hand moves every 10 seconds), second)*Digital: Hour, minute, second, pm, month, date, day