Seiko Prospex Speedtimer Mechanical Datsun 240Z Limited Edition SPB517J1 The Seiko Prospex Speedtimer SPB517J1 pays tribute to the iconic Datsun 240Z, a legendary sports car celebrated for its bold design and performance heritage. Released as a limited edition of just 2,500 pieces, this timepiece captures the spirit of motorsport history in a refined and technical wristwatch. Powered by the 6R55 automatic movement, the watch offers an impressive 72-hour power reserve and can also be hand-wound. With an accuracy of +25/-15 seconds per day, the SPB517J1 balances mechanical performance with everyday reliability. The black dial features a date display, timing bezel, and LumiBrite hands and indexes for excellent visibility in all lighting conditions. The case is made of stainless steel with Super-Hard Coating and protected by a curved sapphire crystal with anti-reflective coating. The watch measures 39.5 mm in diameter, 12.0 mm in thickness, and weighs just 86 g, offering a light and comfortable fit. The strap width is 20 mm and the total length is 185 mm. This model comes with a striking red and black leather strap, made from LWG-certified leather (Leather Working Group), ensuring responsible and sustainable tanning practices. A three-fold clasp with push-button release and a screw-down case back complete the functional, durable design. The watch is also equipped with magnetic resistance (4800 A/m) and water resistance up to 200 meters (20 ATM). The SPB517J1 Datsun 240Z Limited Edition is more than just a timepiece – it’s a celebration of mechanical craftsmanship, motorsport heritage, and distinctive design. Perfect for collectors and automotive enthusiasts alike.