This is an authentic OMEGA Stainless Steel 18K Sedna Gold Diamond Bezel 29mm Constellation Automatic Watch 131.25.29.20.55.001. The watch is crafted of stainless steel and 18 karat Sedna gold, and features a mother of pearl dial, diamond bezel, sapphire crystal, and an automatic movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.