This is an authentic OMEGA Stainless Steel 18K Yellow Gold 40mm Speedmaster Chronograph Automatic Watch Black 323.21.40.40.01.001. This watch is crafted of stainless steel and 18 karat yellow gold, and features a black dial, chronograph complication with gold sub dials, sapphire crystal, and an automatic movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.