Description Offered for auction is a Seiko Prospex HBB001K1, a special limited-edition automatic diver created to commemorate Seiko’s 145th anniversary. This anniversary edition features an elegant silver-white dial contrasted by a distinctive two-tone bezel and blue seconds hand. The blue details are inspired by “Seiko Blue”, a colour associated with the brand since the 1960s. The angular case design is commonly known among enthusiasts as the “Samurai”, referring to its sharp, blade-like lines. The watch is powered by Seiko’s reliable 4R35 automatic calibre, which can also be manually wound. It offers approximately 41 hours of power reserve, 23 jewels, hacking seconds and a date display. As a genuine Prospex diver, the watch offers 200 metres of water resistance, a screw-down crown, screw-down caseback and unidirectional rotating diving bezel. LumiBrite is applied to the hands, indices and bezel for excellent visibility in low-light conditions. Specifications * Brand: Seiko * Collection: Prospex * Reference: HBB001K1 / HBB001 * Edition: Seiko 145th Anniversary Limited Edition * Production: Limited to 9,999 pieces worldwide * Year: 2026 * Movement: Automatic with manual winding * Calibre: Seiko 4R35 * Jewels: 23 * Power reserve: Approx. 41 hours * Functions: Hours, minutes, seconds and date * Case material: Stainless steel * Diameter: 41.7 mm * Thickness: 12.3 mm * Lug-to-lug: 49.5 mm * Crystal: Hardlex * Dial: Silver-white * Bezel: Two-tone, unidirectional rotating * Bracelet: Stainless steel * Lug width: 20 mm * Water resistance: 200 metres / 20 bar * Crown: Screw-down * Lume: Seiko LumiBrite * Weight: Approx. 170 g