The G-Shock GA2200M-4A has a carbon core guard structure that makes it a great-looking outdoor tool. This watch is made from a shock-resistant construction that protects against impact and vibration. It features 200M water resistance, double LED super illumination light, and a diagonal digital display. 5 daily alarms, world time, and a 1/1000th second stop watch complete the design. Case size: 50.8 x 47.1 x 12.8mm Because it's a G-Shock, it is shock resistant and built to last a lifetime.