Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel Case - Black Supernova Diamond Dial - 123.10.27.20.51.001 Zirconium 41mm Everose Rolesor case with

41mm Everose Rolesor case with 904L steel monobloc middle case

18K white gold back with glareproofed sapphire crystal

There are month and date windows at the 3 o’clock aperture

the dial maintains its brilliance

The 30-minute counter at 3 o'clock and 12-hour counter at 9 o'clock guarantee meticulous timekeeping precision

Omega Ladies Constellation Chronometer Watch - 27 mm Brushed Steel Case - Black Supernova Diamond Dial - 123.10.27.20.51.001 Zirconium 41mm Everose Rolesor case 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.