Omega Style No: 123.15.27.20.05.001 Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel Case - Diamond Bezel - Mother-Of-Pearl Dial

27 mm brushed stainless steel case, transparent back, diamond bezel, domed scratch-resistant sapphire crystal with anti-reflective treatment both sides, white mother-of-pearl dial with stars, self-winding chronometer Omega 8520 movement with Co-Axial Escapement, date, and seconds, approximately 50 hours of power reserve, stainless steel bracelet. Water resistant to 100 m.