Audemars Piguet: An 18ct. gold and diamond-set calendar quartz wristwatch, model Royal Oak, in octagonal case with diamond-set bezel, the matt gilt dial with diamond-set numerals, date aperture and sweep centre seconds, the back secured by eight screws with integral flexible gold bracelet and steel deployant clasp, the case engraved no. 197, with presentation box, outer packaging and spare link