Bulova Surveyor Skeleton Automatic men's watch. Time only function. Movement type Mechanical No. of jewels 21 Power reserve 40 hours. Case material Steel. Case diameter 41mm, weight 146g. Screw-down caseback with transparent porthole and visible movement. Mineral glass. Leather strap type. Deployment clasp with buttons. Dial type Analog Color Silver. Waterproof 3Atm.