Omega Constellation Co-Axial Watch - 38 mm Steel Case - 18K Yellow Gold Bezel - Grey Dial - 123.20.38.21.06.001 -Silvery bezel with engraved Roman numerals

bezel with engraved Roman numerals

bidirectional rotatable bezel with 24-hour engraved black Cerachrom insert

29 mm yellow gold case with anti-magnetic protection

Oyster 20mm bracelet

Omega Constellation Co-Axial Watch - 38 mm Steel Case - 18K Yellow Gold Bezel - Grey Dial - 123.20.38.21.06.001 -Silvery bezel with engraved Roman numerals38 mm stainless steel case, transparent back, 18k yellow gold bezel with engraved roman numerals, domed scratch resistant sapphire crystal with anti reflective treatment on both sides, grey dial with a date window at 3 oclock , caliber 8500 self winding movement, approximately 60 hours of power reserve, stainless steel bracelet with 18K yellow gold bars. Water resistant to 10 bar .