Audemars Piguet Royal Oak Offshore Selfwinding Chronograph 37mm 26430TI Turquoise

Audemars Piguet introduced this reference in June 2026 as one of three new 37 mm Royal Oak Offshore chronographs, and it is the first titanium case in that 37 mm line. The case, with a titanium crown and push-pieces, measures 37 mm across and 11.5 mm thick, with sapphire front and back and 50 m of water resistance. Inside is Calibre 6401, AP's in-house integrated column-wheel chronograph with a vertical clutch, which WorldTempus reports took five years to develop and replaces Calibre 2385, in use since 1997. At 5.7 mm it is slim enough for AP to show it through the caseback, with a 22-carat pink gold rotor, and it runs at 4 Hz with 55 hours of reserve. The turquoise Tapisserie dial has tone-on-tone counters, a matching inner bezel, white gold hands and a date at 6, and the watch comes on an interchangeable turquoise rubber strap with a titanium pin buckle.

Written 10 October 2026 from Audemars Piguet's product page and WorldTempus' introduction.