Omega Seamaster Diver 300M Co-Axial Master Chronometer Watch - 42 mm Steel Case - Unidirectional Bezel - Black Ceramic Dial - 210.30.42.20.01.001

42 mm stainless steel case with helium escape valve, transparent back, unidirectional rotating bezel with a white enamel diving scale, domed scratch-resistant sapphire crystal anti-reflective treatment on both sides, polished black ceramic dial with laser-engraved waves and a date window at 6 o’clock, Caliber Omega 8800 self winding movement with co-axial escapement, chronometer, date, approximately 55 hours of power reserve, stainless steel bracelet. Water resistant to 30 bar (300 metres / 1000 feet).