The Big Combination Military watch from G-Shock was designed and engineered for rough and rugged activities. This watch is shock and magnetic resistant as well as water resistant up to 200M. Comes with 29 times zones, 4 daily alarms, an hourly alarm function, a countdown timer and an auto calendar. This watch has it all. Dimensions: Case Width: 49mm Case Length: 45mm Band Width: 27mm Because it's a G-Shock, it is shock resistant and built to last a lifetime.