Casio GD-100MS-3ER G-Shock Watch - Green Features: Super-auto-LED Light Shock-resistant Display Flasher World time function Stopwatch function - 1/100 sec. - 24 hours Timer - 1/1 sec. - 24 hours 5 daily alarms Button tones on/off Automatic calendar 12/24-hour timekeeping Mineral glass Resin case and Resin band Water resistance classification (20 bar) Accuracy +/- 15 sec seconds per month Type of battery CR2025 Dimensions approx. 55,0mm x 51,2mm x 17,4mm (H x W x D) Weight approx. 72,0 g