This is an authentic AUDEMARS PIGUET Stainless Steel Rubber Diamond 37mm Royal Oak Offshore Chronograph Automatic Watch Black 26231ST.ZZ.D002CA.01. This watch is crafted from stainless steel and features a diamond bezel, a black Tapisserie dial and an automatic movement with chronograph and date complications. Follow this item for alerts. Audemars Piguet is a registered trademark of Audemars Piguet. FASHIONPHILE is not affiliated with Audemars Piguet.