Luminox Original Navy Seal Diver Series 3001 Mens Watch Designed / supplied to US Navy SEAL teams Official qualification for use in the US Navy and US Army Complies with military specifications of all branches of the US Armed Forces Fiberglass reinforced polyester injection molded case Stainless steel plate case back Double gasket crown/stem confers water resistance of 660 feet Unidirectional ratcheting bezel Tempered scratch resistant mineral glass crystal Multi-jewel Swiss quartz movement with date function End of life (EOL) feature and 4 year battery life Arnitel dive strap with stainless steel buckle Black dial.