(*) Audemars Piguet Royal Oak Jumbo A rare and very sought after Geneva wristwatch with date and original etui Movm. No. 661966, Ref. 15300ST.OO.1220ST.01, Cal. 3120, Case No. F-90730 / No. 4385, Dimensions 39 x 49 mm, circa 2007, Origin Swiss Case: steel, screwed on glazed back, screwed crown, AP steel bracelet, bracelet length 155 mm, total length 200 mm. Dial: silvered, 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 updated reference 15300ST was launched in 2005 and boasts a number of sophisticated details that have set another milestone in the evolution of the Royal Oak: Sharp-cut edges, a 39 mm case, centre seconds and wider indexes for better readability. The oscillating weight of automatic calibre 3120 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 is definitely a must-have for any watch enthusiast. Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running. Case: very good, slightly worn. Dial: very good. Movm.: very good, capable of running.