Omega Style No: 131.20.39.20.58.001 Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel And Yellow Gold Case - Champagne Diamond Dial

39 mm steel and yellow gold case with anti-magnetic protection, transparent back, bezel engraved with Roman numerals, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, sun-brushed champagne dial with diamond indexes with date at 6 oclock, Calibre Omega 8800 self-winding co-axial master chronometer movement with date, approximately 55 hours of power reserve, steel and yellow gold bracelet. Water resistant to 50 metres (167 feet).