The Casio G-SHOCK GMS2100B-8A watch is shock-resistant and has a quartz movement inside of a 45.9mm x 40.4mm dark gray ion plated stainless steel case. The gray dial has an analog and digital time display. Features of the watch are world time, 1/100-second stopwatch, a countdown timer, five daily alarms, hourly time signal, and a full auto-calendar. The black resin band includes a tang buckle. Water resistant to 200 meters.