Smith & Wesson tritium dive watch (Black) with military - style illumination and Swiss movement. A rugged, precision watch with self-illuminating Swiss-made tritium tubes, guaranteed to deliver 25 years of consistent glow! that's why the military uses the tritium.. because sometimes timekeeping isn't a luxury, it's dead serious. A true 200 m dive-rated watch, your choice of 3 dial colors: precision quartz movement with ronda Swiss parts; easy-to-read tritium light, even in total darkness. The encapsulated material never needs maintenance or external power; tough, lightweight resin case and bezel. Stainless steel bracelet, Black ion plated, with double-locking clasp. Also comes with an extra rubber Strap with buckle; water resistant to 660'; rotating bezel tracks elapsed time; hardened, scratch-resistant mineral crystal; second hand; date window at 3 o'clock. Weighs 4 oz. accuracy, toughness, and a sure performance.