This is an authentic AUDEMARS PIGUET Stainless Steel Rubber Diamond 37mm Royal Oak Offshore Chronograph Automatic Watch Blue 26231ST.ZZ.D027CA.01. The watch is crafted of stainless steel and features a diamond bezel weighing approximately .96 total carat weight, a blue dial, sapphire crystal, blue rubber strap 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.