Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel Case - Black Supernova Diamond Dial - 123.10.27.20.51.001 Zirconium 18K white gold back with

18K white gold back with glareproofed sapphire crystal

the dial maintains its brilliance

Black on Black

Crown Screw Locked Caliber Calibre 2385 Movement Automatic Hands Luminous Dial Color Black Dial Type Analog Dial Markers Set with Diamonds Band Material White Gold Clasp AP Folding Clasp Water Resistance 50 Meters (165 Feet) Comments Power Reserve 40 Hours Gender Unisex

42 mm 18K red gold case

Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel Case - Black Supernova Diamond Dial - 123.10.27.20.51.001 Zirconium 18K white gold back with27 mm brushed stainless steel case, transparent back, domed scratch resistant sapphire crystal with anti reflective treatment both sides, black supernova 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 bracelet. Water resistant to 100 m.