Audemars Piguet Selfwinding

Audemars Piguet's Royal Oak Selfwinding 15550ST.OO.1356ST.07 is a steel watch measuring 37 mm across and 8.9 mm thick. The case houses the self-winding calibre 5900 under a sapphire crystal, with a grey dial visible beneath. Central seconds and a date function round out the display, both driven by the same automatic movement. The bracelet is steel, fitted with a folding clasp that closes securely against the wrist. This is a women's model within the Royal Oak line, built on the collection's familiar octagonal case design. Water resistance reaches 50 metres, a figure the case and its folding clasp are built to hold.