Audemars Piguet Selfwinding Chronograph

Audemars Piguet's Royal Oak Selfwinding Chronograph, reference 26240BA.OO.1320BA.02, is a chronograph with a 41 mm case in yellow gold. The case measures 6.8 mm thick and holds a gold-toned dial under a sapphire crystal. Inside is the self-winding calibre 4401, an in-house movement with flyback chronograph, small seconds and date functions. The flyback function allows the chronograph to be reset and restarted with a single push, useful for timing successive intervals. Small seconds sits alongside the date at the dial's edge. The watch is fitted with a yellow gold bracelet closed by an AP folding clasp. Water resistance is rated to 50 metres.