{"product_id":"seiko-prospex-1965-u-s-special-edition-heritage-diver-ref-spb421-full-set","title":"Seiko Prospex Heritage Diver SPB421  361499","description":"\u003cp\u003eThe Seiko Prospex US Special Edition 1965 Heritage Diver Ref. SPB421 pays tribute to Seiko’s first-ever dive watch with a refined blend of vintage character and modern capability. Its design echoes the bold, purposeful aesthetic of the 1965 original, now elevated with contemporary materials, upgraded performance, and a Special Edition execution exclusive to the U.S. market. With its robust build, crisp detailing, and dependable Prospex diving features, the SPB421 delivers a heritage-inspired tool watch with a timeless aesthetic and modern mechanics.\u003cbr\u003e\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":49786075840758,"sku":"1828105","price":800.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/9065\/2406\/files\/PhotoDec112025_110458AM.jpg?v=1765566949","url":"https:\/\/www.cwwatchshop.com\/products\/seiko-prospex-1965-u-s-special-edition-heritage-diver-ref-spb421-full-set","provider":"C.W. Watch Shop","version":"1.0","type":"link"}