This is an authentic OMEGA Stainless Steel Diamond 19mm Constellation Quadra Quartz Watch Black 1528.46.00. The watch is crafted of stainless steel and features a black dial, diamond accented bezel approximately .31 total carat weight, sapphire crystal, and a quartz movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.