This is an authentic OMEGA Stainless Steel 18K Yellow Gold Diamond 38mm Constellation Co-Axial Chronometer Automatic Watch Champagne 123.20.38.21.58.001. This watch is crafted of stainless steel and 18 karat yellow gold, and features a champagne dial, gold hands and diamond hour markers, two tone bracelet, sapphire crystal, and an automatic movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.