Audemars Piguet Royal Oak Jumbo A rare Geneva "cult" wristwatch with original box and original certificate Movm. No. 968764, Ref. 15400ST.OO.1220ST.01, Cal. 3120, Case No. J-11517 / No. 14174, Dimensions 41 x 51 mm, circa 2016, Origin Swiss Case: steel, screwed on glazed back, screwed crown, AP steel bracelet, bracelet length 140 mm, total length 185 mm. Dial: black, engine-turned, "grand tapisserie". Movm.: Automatic. The bold, distinctive design of the Royal Oak has made it the trademark model of the Audemars Piguet product range - the watch is considered a true legend among luxury sports watches all over the world. Reference 15400ST.OO.1220ST.01 has a beautiful black "grand tapisserie" dial with white indexes, white gold Royal Oak hands with a luminous coat, a black date disc that matches the colour of the dial, and a central second. Inside the 15400ST operates the supremely reliable calibre 3120 revealed through the coated sapphire crystal on the back. The oscillating weight of the automatic movement is made of 22k gold and engraved with the coat of arms of the Audemars family on the left and that of the Piguet family on the right – both are clearly visible thanks to the sapphire crystal case back. The Audemars Piguet calibre 3120 is today regarded as one of the most beautiful, accurate and largest automatic movements ever and has been used in several Royal Oak models. All things considered – the Audemars Piguet Royal Oak Jumbo Automatic reference 15400ST.OO.1220ST.01 is without doubt a must-have for any watch enthusiast. Case: very good, slightly scratched. Dial: very good. Movm.: very good, capable of running. Case: very good, slightly scratched. Dial: very good. Movm.: very good, capable of running.