Audemars Piguet Selfwinding

Audemars Piguet's Royal Oak Selfwinding 15510ST.OO.1320ST.09 measures 41 mm across in stainless steel. The case follows the Royal Oak's octagonal design, updated here with a more ergonomic profile than earlier generations. A green "Grande Tapisserie" dial sits under a sapphire crystal, its khaki shade distinct within the collection. The dial shows central seconds and a date window, run by the self-winding calibre 4302. No other complications are listed for this reference, keeping the layout clean and legible. A stainless steel bracelet completes the watch, closing with an AP folding clasp. That clasp helps the case hold its water resistance rating of 50 metres.