G Shock MASTER OF G MUDMASTER GG1000 1A5 Data Gemstone Emerald 0 and above) Please 0 and above) Please ensure the app is the latest version and has Bluetooth 5 featuring an open heart movement and crafted in Japan daylight saving on off • 1 100 second stopwatch • Countdown timer • 5 daily alarms (with 1 snooze alarm) • Hourly time signal • Low battery alert • Full auto calendar (to year 2099) • 12 24 hour format • Button operation tone on off • Regular timekeeping • Accuracy: ±15 seconds per month Mud Resist construction helps to ensure that nothing gets into the watch when down and dirty work takes you deep into the dirt and sludge