This Omega is 39.5 mm black ceramic 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, 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, quilted black rubber strap. Water resistant to 60 bar (600 metres / 2000 feet).