The Audemars Piguet Royal Oak Offshore Chronograph Tour Auto Ref. 26363ST.OO.D003CU.01 is an exceptionally rare and highly collectible timepiece, created as a limited edition of just 60 pieces worldwide in 2010 to commemorate the prestigious Tour Auto Optic 2000 vintage car rally, offering collectors a unique fusion of high-octane motorsport spirit and Audemars Piguet’s legendary luxury craftsmanship . This striking 42mm stainless steel watch features the iconic octagonal bezel secured by eight hexagonal screws and a distinctive dial design inspired by classic racing aesthetics, with a Black “Méga Tapisserie” dial adorned with bold Arabic numerals at 3, 6, 9, and 12 o’clock, a tachymeter scale on the inner flange, and three contrasting sub-dials for the chronograph functions at 3, 6, and 9 o’clock . The dial’s racing heritage is further emphasized by the classic Tour Auto Optic 2000 color palette of red, white, and black, including subtle red accents and a checkered flag motif integrated into the tachymeter scale, making it instantly recognizable as a true enthusiast’s piece . Powered by the reliable automatic Audemars Piguet Calibre 2326/2840, a movement combining a Jaeger-LeCoultre base with a Dubois-Depraz vertical-clutch chronograph module, this watch delivers 38-hour power reserve and 50 jewels, protected by a soft-iron Faraday cage for anti-magnetic shielding and visible through the sapphire crystal caseback that showcases the brand’s meticulous finishing . Housed within a robust stainless steel case with 100 meters of water resistance, a screw-down crown, and a scratch-resistant sapphire crystal, this timepiece is secured to the wrist by a sporty and comfortable black leather strap featuring contrasting white stitching and a steel folding clasp, perfectly complementing the watch’s dynamic character . This particular reference comes with its original limited edition presentation box, often including the sought-after “gas can” box and chronograph manual, adding to its desirability and provenance for serious collectors . Presented in pre-owned condition with minimal signs of wear, this Tour Auto edition represents a rare opportunity to acquire a piece of automotive and horological history, appealing to connoisseurs who appreciate both the technical excellence of a Swiss chronograph and the exclusive cachet of a limited-production race-inspired icon. Key specifications: 42mm stainless steel case; grey “Méga Tapisserie” dial with Arabic numerals and checkered flag motif; Caliber 2326/2840 automatic chronograph movement; 38-hour power reserve; black leather strap with white stitching; 100m water resistance; limited edition of 60 pieces; original presentation box and manual included where applicable.