This Omega is 45.5 mm 18K Sedna gold case with anti-magnetic properties and helium escape valve, transparent back, screw-in crown, unidirectional rotating black ceramic bezel with Ceragold diving scale, scratch-resistant sapphire crystal, black 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 9901 self-winding Co-Axial master chronometer movement with chronograph function, approximately 60 hours of power reserve, black leather strap with rubber lining. Water resistant to 600 m (2000 ft).