Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel And Yellow Gold Case - Diamond Bezel - Mother-Of-Pearl Diamond Dial - 123.25.27.20.55.003 Sodalite octagonal crown with a faceted

octagonal crown with a faceted sapphire

blue counters and blue external zone

42mm 18K yellow gold case

caliber 240 Q self-winding movement with perpetual calendar (day

18K yellow gold unidirectional rotatable bezel with black Cerachrom disc

Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel And Yellow Gold Case - Diamond Bezel - Mother-Of-Pearl Diamond Dial - 123.25.27.20.55.003 Sodalite octagonal crown with a faceted27 mm brushed stainless steel and 18K yellow gold case, transparent back, diamond bezel, domed scratch resistant sapphire crystal with anti reflective treatment both sides, white mother of pearl dial with diamond hour markers, self winding chronometer Omega 8520 movement with Co Axial Escapement, date, and seconds, approximately 50 hours of power reserve, stainless steel and 18K yellow gold bracelet. Water resistant to 100 m.