Omega Constellation Co-Axial Master CHRONOMETER Small Seconds Petite Seconde Watch - 27 mm Steel And Red Gold Case - White Mother-Of-Pearl Diamond Dial - 127.20.27.20.55.00127 mm stainless steel and 18K red gold case, transparent back, bezel with tone in tone Roman numerals, domed scratch resistant sapphire crystal anti reflective treatment on both sides, white pearled mother of pearl dial with 10 diamond indexes and a date window at 6 o'clock, Caliber Omega 8704 self winding movement with co axial escapement, chronometer, date, approximately 50 hours of power reserve, stainless steel and red gold bracelet. Water