Omega Constellation OMEGA Co-Axial Master Chronometer - 36 mm Steel And Sedna Gold Case - Brown Dial - 131.20.36.20.13.001 Red Reference #- H24655331

Reference #- H24655331

39 mm stainless steel and yellow gold case

24 mm stainless steel and 18K yellow gold case

Reference #- H69529913

Omega Constellation OMEGA Co-Axial Master Chronometer - 36 mm Steel And Sedna Gold Case - Brown Dial - 131.20.36.20.13.001 Red Reference #- H2465533136 mm steel and sedna gold 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 brown 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 and sedna gold bracelet. Water resistant to 50 metres (167 feet).