Omega De Ville Prestige Co-Axial Watch - 32.7 mm Steel Case - Diamond-Set Yellow Gold Bezel - Mother-Of-Pearl Diamond Dial - Yellow Gold-Steel Bracelet - 424.25.33.20.55.00432. 7 mm stainless steel case, sapphire back, diamond set 18K yellow gold bezel, domed scratch resistant sapphire crystal with anti reflective treatment inside, white mother of pearl dial with diamonds and a unique polished butterfly pattern enhanced by a transferred outline against a matt background, caliber 2500 self winding movement with chronometer and a date window at 6 o'clock, approximately 48 hours of power reserve, yellow gold steel bracelet