Audemars Piguet Selfwinding Chronograph

Audemars Piguet's Royal Oak Selfwinding Chronograph 26240ST.OO.1320ST.08 is a 41 mm steel case chronograph. The case measures 6.8 mm thick and pairs with a green dial under a sapphire crystal. Inside is the self-winding calibre 4401, an in-house movement built for chronograph work. The flyback function allows the chronograph to be reset and restarted in one motion, and the layout includes small seconds and a date display. This is Audemars Piguet's own take on the sports chronograph, built on the familiar Royal Oak case architecture. The watch is fitted with a steel bracelet closed by an AP folding clasp. Water resistance reaches 50 metres.