Audemars Piguet Selfwinding

Audemars Piguet's Royal Oak Selfwinding 15552BC.ZZ.1358BC.01 is a women's model in 18-carat white gold, measuring 37 mm across. The case stands 9.3 mm thick and carries a sapphire crystal over a silver dial. Inside is the self-winding calibre 5909, which drives the hours, minutes and centre seconds. The watch is set with diamonds, and the case sits on a white gold bracelet that is itself snow-set with brilliant-cut diamonds. An AP folding clasp secures the bracelet on the wrist. Despite the sporting Royal Oak lines, this reads as a dress-oriented piece rather than a tool watch. Water resistance is modest: the case is rated to 20 metres.