Omega Planet Ocean 600 M Omega Co-axial Master Chronometer Chronograph Watch - 45.5 mm Sedna Gold And Steel Case - Unidirectional Blue Ceramic Bezel - Blue Ceramic Dial - 215.20.46.51.03.001

45.5 mm 18K Sedna gold and stainless steel case with anti-magnetic properties and helium escape valve, transparent back, screw-in crown, unidirectional rotating blue ceramic bezel with Ceragold diving scale, scratch-resistant sapphire crystal, blue ceramic dial with Arabic numerals and a date window at the 6 o’clock position, small seconds sub-dial, as well as 60-minute and 12-hour counters on one dial, caliber Omega 9900 self-winding Co-Axial master chronometer movement with chronograph function, approximately 60 hours of power reserve, 18K Sedna gold and stainless steel bracelet, extendable foldover buckle. Water resistant to 600 m (2000 ft).