The G-Shock GA900AS-1A offers the perfect combination of toughness and fashion-ability. This watch is made from a shock-resistant construction that protects against impact and vibration. It features 200M water resistance, LED super illumination light, and an interchangeable band structure. 5 daily alarms, world time, and a 1/1000th second stop watch complete the design.Because it's a G-Shock, it is shock resistant and built to last a lifetime.