G-Shock G-Shock Carbon Core G-Steel GSTB200-1A with Analogue and Digital Display, Tough Solar, Stainless Steel and Carbon Case/Bezel, Carbon Core Structure, Mobile Link, 5 Multi-Function Alarms, Countdown Timer, 1/1000-Second Stopwatch, World Time, Double LED Light with Afterglow, Neobrite, Shock Resistance and 200m Water Resistance.