Prized for its durability and unique illumination system, the Luminox Original Navy SEAL Series 1 stainless steel men's watch exudes confidence and power whenever it's worn. Thanks to the vaunted Luminox self-powered illumination system, this watch's hands and dial markers glow 100 times brighter than other luminous watches and will provide continuous illumination for more than 25 years. It's also water resistant to 200 meters (20 ATM, 660 feet), which is suitable for recreational scuba diving. The large, black-plated stainless steel watch case--measuring 1.7 inches wide and 0.4 inches thick--is topped by a ratcheting, unidirectional rotating bezel with engraved 5-minute Arabic numerals in white and coin-edged detailing for an improved grip. The black dial face is accented by white Arabic numeral markers, large white baton hands (with seconds hand), and a date function at 3 o'clock. It's completed by a comfortable polyurethane (PU) diver's strap in black. Other features include a scratch-resistant sapphire crystal with anti-reflective coating, multi-jeweled Swiss quartz watch movement, double gasket crown, and 4-year battery life. It's backed by a 1-year Luminox warranty. Luminox Self-Powered Illumination System Each Luminox watch employs tiny self-powered micro gas lights (borosilicate glass capsules), which are firmly embedded in the hands and the hour indicators on the watch face (as well as on the turning ring of diver's watches). Luminox watches need no external light source to "charge" the paint on the dial or hands in order to glow as do conventional luminous watches, nor do they require a push of a button to light the dial as do electro luminescent watches. About Luminox Luminox combines the finest tradition and precision of Swiss watchmaking with the durability demanded by US armed forces and the latest innovations in timepiece technology. The company pioneered the development of small, individual luminescent tracer lamps and was contacted by the U.S. Navy SEAL teams to build a dive watch for their use on night missions. After their popularity in the Navy grew, the Air Force asked Luminox to develop a watch specifically for F-117 Nighthawk Stealth pilots.