Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel Case - Black Dial - Black Leather Strap - 131.13.39.20.01.001

39 mm steel case with anti-magnetic protection, transparent back, bezel with blackened 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, black leather strap. Water resistant to 50 metres (167 feet).