Designed in conjunction with and supplied to the US Navy SEAL teams. Rigorous testing earned it official qualification for use in the US Army and US Navy as well as all branches of the armed Military services (MIL Spec # W-46374F). Multi-jewel Swiss quartz analog movement. Polyamid watch case. Double gasket crown/stem confers water resistance of 20 atm/200 meters/660 feet. Stainless steel case back. Date window. Tempered scratch resistant mineral glass crystal. Unidirectional tight ratcheting bezel features bright Traser "dot" encased in metal housing and protected by sapphire glass window. Polymer watch strap with stainless steel buckle.