This is the durable watch engineered to endure the demands of military field personnel while still serving the weekend warrior. Made by a manufacturer of tactical military watches whose design collaborations have included U.S. Army Special Forces and Navy SEALs, this watch is encased in a solid block of 316L stainless steel with a rubber strap that endures rain, knocks, and sweat. The crown screws down and locks with a double O-ring that provides water resistance to 660', while a scratch-resistant, anti-reflective crystal protects its precise quartz movement. Its luminous tritium-powered hands provide easy viewing of the brass 12- and 24-hour dial during an evening run. Fits wrists 5"-8 1/2" in circumference. Includes watertight tactical storage box. Only Green available. Silver oxide battery provides up to four years of use before requiring replacement. Case without crown 1.73" diam. x .59" thick. (4 1/4 oz.)