Audemars Piguet. A special and very rare Audemars Piguet Royal Oak Offshore 'End of Days' edition reference 25770ST with certificate of origin Model: Royal Oak Offshore End Of Day Material: PVD Reference N°: 25770SN Year: 1999 Case N°: E21777 Caliber: 2226/2840 Movement N°: 482242 Bracelet: leather strap Dimensions: 44 mm Accessories: papers