Omega Style No: 215.98.40.20.01.001 Omega Seamaster Planet Ocean 600M Co-Axial Master Chronometer Watch - 39.5 mm Black Ceramic Case - Unidirectional Bezel - Black Ceramic Dial - Black Leather Strap

39.5 mm black ceramic case with helium escape valve, transparent back, unidirectional rotating bezel that includes a black ceramic triangle at 12 o’clock, domed scratch-resistant sapphire crystal anti-reflective treatment on both sides, black ceramic dial with 18K white gold numerals, indexes and hands, as well as a date window at 3 o’clock, Caliber Omega 8800 self winding movement with co-axial escapement, chronometer, date, approximately 55 hours of power reserve, black leather strap. Water resistant to 60 bar (600 metres / 2000 feet).