Omega Style No: 215.30.44.21.01.001 Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Watch - 43.5 mm Steel Case - Unidirectional Black Ceramic Bezel - Black Ceramic Dial

43.5 mm stainless steel case with anti-magnetic properties and helium escape valve, transparent back, screw-in crown, unidirectional rotating black ceramic bezel with Liquidmetal diving scale, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, black ceramic dial, caliber 8900 self-winding master co-axial chronometer movement with date window at the 3 o’clock, approximately 60 hours of power reserve, stainless steel bracelet. Water resistant to 600 m (2000 ft).