Omega Style No: 131.20.39.20.52.002 Omega Constellation Co-Axial Master Chronometer - 39 mm Steel And Yellow Gold Case - Opaline Silvery Diamond Dial

39 mm steel and yellow gold case, transparent back, bezel engraved with Roman numerals, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, opaline silvery dial with diamond hour-markers with date at 6 oclock, Calibre 8800 self-winding chronometer movement with date. Water resistant to 50 metres (167 feet).