Audemars Piguet Royal Oak Chronograph Unworn Royal Oak Chronograph Black Dial 26331ST Unworn 2021 41mm Stainless Steel 26331ST Audemars Piguet Royal Oak Chronograph “Panda”. This watch depicts no signs of wear, and includes the original Audemars Piguet warranty card and box. The watch also includes a 1 year warranty from us.