Omega Style No: 131.23.41.21.06.002 Omega Constellation Co-Axial Master Chronometer - 41 mm Steel And Yellow Gold Case - Rhodium-Grey Dial

41 mm steel and yellow gold case, transparent back, brown polished ceramic bezel ring with Roman numerals filled with OMEGA Ceragold, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, rhodium-grey dial with silk-embossed finish with date at 6 oclock, Calibre 8900 self-winding chronometer movement with date. Water resistant to 50 metres (167 feet).