This is an authentic OMEGA Stainless Steel 18K Yellow Gold 38mm Constellation Chronometer Automatic Watch 123.20.38.21.02.005. This watch is crafted of stainless steel and 18 karat yellow gold, and features a silver dial, gold hands and hour markers, sapphire crystal, and an automatic movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.