The popular OMEGA De Ville Prestige collection has attracted a large and loyal following over the years with its classic, elegant design. This stainless steel and 18K yellow gold model features a PVD greened sun-brushed dial on an embossed vertical structure that is encircled by a \"railway\" minute track. With a date window at 6 o\'clock, the applied OMEGA logo, the alternating Roman numerals and cabochons are yellow-gold plated, along with the hands. Surrounding the scratch-resistant sapphire crystal, the 18K yellow gold bezel is mounted on a 39. 5 mm stainless steel case, which is presented on a two-tone bracelet. At the heart of this timepiece is the OMEGA Co-Axial Calibre 2500. Calibre Omega 8520: Self-winding movement with Co-Axial escapement. Free sprung-balance system with silicon balance-spring. Automatic winding in both directions. Rhodium plated finish with exclusive Geneva waves in arabesque. FEATURESAutomatic Watch: A self-winding watch or automatic watch uses a mechanical movement whose main spring is wound automatically by the natural motion of the wearer\'s arm. Chronometer: Label given to a watch which has undergone precision tests and received a certificate from an official body (COSC).Date: The day of the month, displayed in a window on a watch dial at the 3 or 6 o’clock position, or within a subdial at 9 o\'clock. TECHNICAL DATABetween lugs20mm Bracelet Steel ? Yellow gold Case Steel ? Yellow gold Case diameter39. 5mm Dial Green Crystal Domed scratch?resistant sapphire crystal with anti?reflective treatment inside Water resistance30 Metres