The Casio G-SHOCK GAB2100-3A watch has a solar powered movement. The green case, made of carbon and resin, measures 48.5mm × 45.4mm. The black dial reveals both digital and analog time displays. Features include world time, 1/100-second stopwatch, a battery level indicator, countdown timer, five daily alarms, date display, and day display. The watch has the ability to connect to your smartphone via Bluetooth. The green resin band is secured with a tang buckle. Water resistant to 200 meters.