Carl F. Bucherer Patravi ScubaTech Men's Stainless Steel Automatic Chronometer Swiss Made Watch 00.10632.23.23.21 Brushed stainless steel case (44 mm in diameter, 13 mm thick), Screw-down special embossed case-back, Unidirectional rotating bezel with ceramic top ring Silver guilloche dial with Carl F. Bucherer logo at the 12 o'clock position, Silver-tone luminescent hands and indices, Sweep seconds hand Date window at the 3 o'clock position, Scratch resistant sapphire crystal with anti-reflective coating on both sides, Screw-down crown Swiss automatic chronometer certified movement, CFB caliber 1950.1, Power reserve of 38 hours, Water resistant to 50 ATM/500 meters/1650 feet, Automatic helium escape valve Brushed and polished stainless steel bracelet with divers extension, Push button deployment clasp