Omega Style No: 131.23.41.21.03.001 Omega Constellation Co-Axial Master Chronometer - 41 mm Steel And Sedna Gold Case - Blue Dial

41 mm steel and sedna gold case, transparent back, polished blue ceramic bezel with Roman numerals in Ceragold, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, sun-brushed blue dial with date at 6 oclock, Calibre 8900 self-winding chronometer movement with date. Water resistant to 50 metres (167 feet).