Omega Constellation Co-Axial Tahiti Watch - 27 mm Steel Case - Tahiti Mother-Of-Pearl Diamond Dial - 123.15.27.20.57.003 Champagne While resolutely modern in style

While resolutely modern in style

astronomical moon

screw-locked crown

Calibre 2943 hand-wound movement with hours

Omega Constellation Co-Axial Tahiti Watch - 27 mm Steel Case - Tahiti Mother-Of-Pearl Diamond Dial - 123.15.27.20.57.003 Champagne While resolutely modern in style27 mm stainless steel case, transparent back, domed scratch resistant sapphire crystal anti reflective treatment on both sides, Tahiti mother of pearl dial with 11 diamond indexes, Caliber Omega 8520 self winding movement with co axial escapement, chronometer, date, approximately 50 hours of power reserve, stainless steel bracelet. Water resistant to 10 bar (100 metres 330 feet).