This is an authentic AUDEMARS PIGUET 18K Yellow Gold Alligator 39mm Millenary Perpetual Calendar Automatic Watch 25777BA.OO.D001CR.01. This watch is crafted of 18 karat yellow gold and features a white dial, perpetual calendar complication, black alligator strap and an automatic movement. Follow this item for alerts. Audemars Piguet is a registered trademark of Audemars Piguet. FASHIONPHILE is not affiliated with Audemars Piguet.