Audemars Piguet Selfwinding Chronograph "50ᵀᴴ Anniversary"

The Audemars Piguet Royal Oak Selfwinding Chronograph "50ᵀᴴ Anniversary", reference 26240ST.OO.1320ST.03, is an octagonal watch with an integrated steel bracelet, case measuring 41mm across and 6.8mm thick. The white dial features Petite Tapisserie pattern and is covered by glareproofed sapphire crystal. It houses the selfwinding calibre 4401, providing hours, minutes, centre seconds, a flyback chronograph and a simple calendar, with a power reserve of 70 hours. Water resistance is rated at 50 metres.