Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Yellow Gold Case - Champagne Dial - Brown Leather Strap - 131.53.39.20.08.001 everose 25 mm steel case

25 mm steel case

28 mm stainless steel and 18K Sedna gold case

29 mm stainless steel case

perpetual calendar

white rubber strap

Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Yellow Gold Case - Champagne Dial - Brown Leather Strap - 131.53.39.20.08.001 everose 25 mm steel case39 mm yellow 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, silk embossed champagne dial with date at 6 oclock, Calibre Omega 8801 self winding co axial master chronometer movement with date, approximately 55 hours of power reserve, brown leather strap. Water resistant to 50 metres (167 feet).