The Smith & Wesson SWW-357-R diver Swiss tritium H3 watch is one of the easiest in the world to read in low light conditions and even in total darkness. This watch is equipped with a tritium light source, which will provide 20-years worth of consistent glow. This tactical-tough watch is resistant to water, OIL and the most corrosive materials. This watch is water resistant to 200-meters (660-feet), which will stand up to the rigors of recreational scuba Diving. The Smith & Wesson commander includes a screw down crown assuring maximum water resistance, shock resistant body, rotating bezel to help track elapsed time, date display and a scratch resistant hardened glass that protects the dial. This watch also features precision quartz Swiss component movement and includes (3) hands to show the hours, minutes and seconds. Measures 43-millimeters.