Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel And Sedna Gold Case - Silvery Dial - 131.20.39.20.02.001 Calatrava crystal white silvery dial with

crystal white silvery dial with diamond hour markers and scratch-resistant saphire crystal

42 mm thick

25 mm steel and yellow gold case

27 mm stainless steel and 18K red gold case

Omega Constellation OMEGA Co-Axial Master Chronometer - 39 mm Steel And Sedna Gold Case - Silvery Dial - 131.20.39.20.02.001 Calatrava crystal white silvery dial with39 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, opaline white silvery 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).