Omega 123.10.31.20.01.001 watch

31 x 31 mm, 10 ATM, Stainless steel The especially dramatic and enduring design concept of the OMEGA Constellation line is characterized by its famous “Griffes”, or claws, and striking dials. This model features a black dial with a date window at the 3 o'clock position and a scratch-resistant sapphire crystal. The bezel, with its engraved Roman numerals, is mounted on a 31 mm stainless steel case, and is presented on a stainless steel bracelet. At the heart of this timepiece is the OMEGA Co-Axial calibre 8520, visible through the transparent caseback.