Omega Constellation Omega Co-Axial Master Chronometer - 29 mm Steel And Yellow Gold Case - Blue Glass Diamond Dial - 131.20.29.20.53.001

29 mm steel and yellow gold case with anti-magnetic protection, transparent back, bezel with engraved Roman numerals, domed scratch-resistant sapphire crystal with anti-reflective treatment on both sides, blue aventurine glass dial with diamond hour markers with date at 6 oclock, Calibre Omega 8700 self-winding co-axial master chronometer movement with date, approximately 50 hours of power reserve, steel and yellow gold bracelet. Water resistant to 50 metres (167 feet).