Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Black Dial - 131.10.39.20.01.001

39 mm steel 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 black dial with date at 6 oclock, Calibre Omega 8800 self-winding co-axial master chronometer movement with date, approximately 55 hours of power reserve, steel bracelet. Water resistant to 50 metres (167 feet).