Audemars Piguet Selfwinding Chronograph

The Royal Oak Selfwinding Chronograph 26240BA.OO.1320BA.01 has an octagonal 41mm case in 18-carat yellow gold with an integrated yellow gold bracelet. The gold sunburst dial is protected by a glareproofed sapphire crystal and displays hours, minutes, small seconds, and a flyback chronograph. Inside is the automatic calibre 4401, offering a 70-hour power reserve, and the case is water resistant to 50 metres. Case thickness measures 6.8mm.