{"product_id":"seiko-prospex-marinemaster-1968-heritage-diver-s-300m-mechanical-automatic-jamstec-limited-edition-hbf002","title":"Seiko Prospex Marinemaster 1968 Heritage Diver’s Mechanical Automatic JAMSTEC Limited Edition HBF002","description":"\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003eSeiko Prospex Marinemaster 1968 Heritage Diver’s 300M Mechanical Automatic JAMSTEC Limited Edition \u003cbr\u003e\u003cbr\u003eHBF002J\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cem\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(0, 170, 255); text-decoration: underline;\"\u003eLimited Edition of 1,000 pieces\u003c\/span\u003e\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cspan style=\"color: rgb(12, 51, 185);\"\u003e\u003cem\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch2\u003e\u003cem\u003e\u003cspan style=\"color: rgb(42, 11, 127);\"\u003eArctic Blue\u003c\/span\u003e — \u003cspan style=\"color: rgb(48, 45, 235);\"\u003eSpirit of Fearless Exploration\u003c\/span\u003e\u003c\/em\u003e\u003c\/h2\u003e\n\u003cp\u003eIn the 1980s, Seiko proved its dive watches in the unforgiving depths. By 1983, prototypes rated to 600 meters survived JAMSTEC’s SHINKAI 20000 submersible — proof that Seiko engineering belonged in the deep.\u003c\/p\u003e\n\u003cp\u003eThe dial defines this Marinemaster. Its carved texture mirrors the path of an icebreaker across frozen seas, while a gradient of deepening blue draws the eye inward. A polished transparent layer heightens clarity and depth, creating a surface that feels alive — a vision of the Arctic suspended beneath sapphire.\u003c\/p\u003e\n\u003cp\u003eA blue ceramic bezel frames the dial with lasting contrast and scratch resistance, while a newly designed clasp ensures comfort without compromise.\u003c\/p\u003e\n\u003cp\u003eThis is a collector’s chronograph of exploration — a watch that embodies Seiko’s enduring partnership with JAMSTEC and its drive to push boundaries in both science and watchmaking.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eHBF002J Specification:\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMovement\u003c\/strong\u003e\u003cbr\u003eCaliber: 8L45\u003cbr\u003e\u003cspan\u003eMovement Type: Automatic with manual winding\u003cbr\u003ePrecision: +10 to -5 seconds per day\u003cbr\u003ePower reserve: Approx. 72 hours(3 days)\u003cbr\u003eJewels: 35\u003cbr\u003e\u003cbr\u003eFunction:\u003cbr\u003e28,800 vibrations per hour (8 beats per second)\u003cbr\u003eStop-second hand function\u003cbr\u003eDate display\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eExterior\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eCase Material: Stainless steel (Bezel: Stainless steel with ceramic display)\u003cbr\u003eCase Size: Thickness:14.1mm; Diameter:42.6mm; Lug-to-lug:49.3mm\u003cbr\u003eCrystal: Dual-curved sapphire crystal\u003cbr\u003eCrystal Coating: Anti-reflective coating on inner surface\u003cbr\u003eLumiBrite: LumiBrite on hands, index(es) and bezel\u003cbr\u003eClasp: Three-fold clasp＆push button release, solid \u0026amp; slide adjuster\u003cbr\u003eDistance between lugs: 20\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003eOther Details\u003c\/strong\u003e\u003cbr\u003e\u003c\/span\u003eWater Resistance: 300m \/ 1000ft diver's\u003cbr\u003eMagnetic Resistance: 4,800 A\/m\u003cbr\u003eLIMITED EDITION on the case back\u003cbr\u003eSerial number engraved on the case back\u003cbr\u003eUnidirectional rotating bezel\u003cbr\u003eScrew-down crown\u003cbr\u003eScrew case back\u003cbr\u003e \u003cbr\u003e\u003cbr\u003e\u003cem\u003e\u003cspan lang=\"EN-US\"\u003e* Kindly note that the displayed image is either a graphic representation or a prototype and may not precisely reflect the final product. Color variations may occur due to differences in browsers, display settings, or devices used for viewing. Additionally, the orientation of the case back in the actual product may differ from what is shown in the photograph\u003c\/span\u003e\u003cspan lang=\"EN-US\"\u003e.\u003c\/span\u003e\u003c\/em\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":48315265876189,"sku":"HBF002J","price":4799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2561\/5342\/files\/HBF002J1.png?v=1785842171","url":"https:\/\/www.watchoutz.com\/products\/seiko-prospex-marinemaster-1968-heritage-diver-s-300m-mechanical-automatic-jamstec-limited-edition-hbf002","provider":"WATCH OUTZ","version":"1.0","type":"link"}