This is an authentic OMEGA Stainless Steel 18K Yellow Gold Diamond Mother of Pearl 28mm Constellation Quartz Watch 131.20.28.60.55.002. The watch is crafted of stainless steel and 18 karat yellow gold, and features a Mother of Pearl dial, diamond hour markers, sapphire crystal, and a quartz movement. Follow this item for alerts. Omega is a registered trademark of Omega. FASHIONPHILE is not affiliated with Omega.