G-Shock GA2100NN-1A Watch. Electrify your style! Introducing a stellar new G-SHOCK in iridescent, digital glitch blazing, multi-angle pattern printing, and translucent resin. Case size (L× W× H). 48.5 × 45.4 × 11.8 mm. Weight:51 g. Case / bezel material: Carbon / Resin. Resin Band. Shock Resistant. Carbon Core Guard structure. 200-meter water resistance. Power supply and battery life. Approx. battery life: 3 years on SR726W X 2. Glass. Mineral Glass. Neobrite. World time. Stopwatch. Timer. Alarm/hourly time signal. LED:White. Calendar. Mute feature. Accuracy: ±15 seconds per month. 12/24-hour format. Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.). Regular timekeeping: Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (day). Digital: Hour, minute, second, pm, month, date. Imported. .