{"product_id":"seiko-prospex-marinemaster-jamstec-limited-edition-1968-heritage","title":"Seiko Prospex Marinemaster 1968 Heritage Diver's Watch","description":"\u003ch2 data-section-id=\"1kd4vfm\" data-start=\"66\" data-end=\"92\" class=\"PDq2pG_selectionAnchorContainer\"\u003eJAMSTEC Limited Edition\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003ch3 data-section-id=\"13qurhx\" data-start=\"94\" data-end=\"139\"\u003eA New Chapter for the Marinemaster Legacy\u003c\/h3\u003e\n\u003cp data-start=\"141\" data-end=\"567\"\u003eThe Seiko Prospex Marinemaster HBF002J1 is a remarkable limited-edition diver's watch that celebrates Seiko's enduring partnership with the Japan Agency for Marine-Earth Science and Technology (JAMSTEC). Inspired by the Mirai II, Japan's first icebreaking polar research vessel, this exceptional timepiece combines professional dive watch engineering with a dial that reflects the beauty and power of the Arctic Ocean.\u003c\/p\u003e\n\u003cp data-start=\"569\" data-end=\"851\"\u003eLimited to just 1,000 pieces worldwide, the HBF002J1 represents the latest evolution of the legendary Marinemaster collection, blending the iconic design of Seiko's celebrated 1968 diver with the brand's most advanced mechanical technology. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1d1ekdd\" data-start=\"853\" data-end=\"885\"\u003eInspired by Polar Exploration\u003c\/h2\u003e\n\u003cp data-start=\"887\" data-end=\"1395\"\u003eThe beautifully textured blue dial is the defining feature of this limited edition. Designed to represent the trail left by the Mirai II as it cuts through Arctic ice, the dial features multiple layers of translucent lacquer that are carefully polished to create extraordinary depth and a glass-like finish. A vertical blue gradient evokes the vast, frozen waters of the polar region, while the rich ceramic bezel perfectly complements the dial's maritime character. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1397\" data-end=\"1592\"\u003eThe case back is engraved with \"JAMSTEC LIMITED EDITION\" alongside each watch's unique serial number, underlining its exclusivity and collectable appeal. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"zk37ms\" data-start=\"1594\" data-end=\"1642\"\u003ePowered by Seiko's Finest Mechanical Movement\u003c\/h2\u003e\n\u003cp data-start=\"1644\" data-end=\"1831\"\u003eAt the heart of the HBF002J1 is the Seiko Calibre 8L45, one of the brand's highest-grade mechanical movements, hand-assembled at the prestigious Shizukuishi Watch Studio in Japan.\u003c\/p\u003e\n\u003cp data-start=\"1833\" data-end=\"1907\"\u003eDeveloped specifically for professional dive watches, the movement offers:\u003c\/p\u003e\n\u003cul data-start=\"1909\" data-end=\"2081\"\u003e\n\u003cli data-section-id=\"wd02pb\" data-start=\"1909\" data-end=\"1948\"\u003eApproximate \u003cstrong data-start=\"1923\" data-end=\"1948\"\u003e72-hour power reserve\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"g3ba49\" data-start=\"1949\" data-end=\"1989\"\u003eAccuracy of \u003cstrong data-start=\"1963\" data-end=\"1989\"\u003e+10\/-5 seconds per day\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"13g95n0\" data-start=\"1990\" data-end=\"2001\"\u003e35 jewels\u003c\/li\u003e\n\u003cli data-section-id=\"1mdxar4\" data-start=\"2002\" data-end=\"2032\"\u003eAutomatic and manual winding\u003c\/li\u003e\n\u003cli data-section-id=\"geytfj\" data-start=\"2033\" data-end=\"2081\"\u003eStop-seconds function for precise time setting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2083\" data-end=\"2283\"\u003eThe 8L45 represents the pinnacle of Seiko's mechanical watchmaking outside its Grand Seiko division, delivering exceptional robustness, precision and reliability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"17qszvx\" data-start=\"2285\" data-end=\"2319\"\u003eProfessional Diving Performance\u003c\/h2\u003e\n\u003cp data-start=\"2321\" data-end=\"2644\"\u003eBuilt to ISO diver's watch standards, the Marinemaster is engineered for serious underwater exploration. The streamlined stainless steel case features a comfortable 4 o'clock crown position, while a screw-down crown, screw case back and ceramic unidirectional rotating bezel provide outstanding durability and security.\u003c\/p\u003e\n\u003cp data-start=\"2646\" data-end=\"2872\"\u003eThe dual-curved sapphire crystal benefits from an anti-reflective coating, ensuring excellent clarity above and below the water, while generous LumiBrite application delivers exceptional visibility in the darkest environments.\u003c\/p\u003e\n\u003cp data-start=\"2874\" data-end=\"3027\"\u003eWith 300 metres of water resistance, the HBF002J1 is every bit as capable as its professional heritage demands. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"tfemir\" data-start=\"3029\" data-end=\"3052\"\u003eDesigned for Comfort\u003c\/h2\u003e\n\u003cp data-start=\"3054\" data-end=\"3342\"\u003eThe stainless steel bracelet features Seiko's latest\u003cstrong\u003e \u003c\/strong\u003esliding micro-adjustment clasp, allowing wearers to fine-tune the fit without tools. This practical feature offers outstanding comfort throughout the day and can easily accommodate wrist expansion or diving equipment when required.\u003c\/p\u003e\n\u003cp data-start=\"3344\" data-end=\"3545\"\u003eCombined with the ergonomic 1968 Heritage case design, the result is a professional dive watch that wears remarkably comfortably despite its impressive capability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-section-id=\"1ma7m6t\" data-start=\"3547\" data-end=\"3562\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"3564\" data-end=\"4239\"\u003e\n\u003cli data-section-id=\"1whdwe4\" data-start=\"3564\" data-end=\"3585\"\u003eReference: HBF002J1\u003c\/li\u003e\n\u003cli data-section-id=\"30nc3w\" data-start=\"3586\" data-end=\"3626\"\u003eCollection: Seiko Prospex Marinemaster\u003c\/li\u003e\n\u003cli data-section-id=\"amthu7\" data-start=\"3627\" data-end=\"3652\"\u003eJAMSTEC Limited Edition\u003c\/li\u003e\n\u003cli data-section-id=\"1561kpq\" data-start=\"3653\" data-end=\"3688\"\u003eLimited to 1,000 pieces worldwide\u003c\/li\u003e\n\u003cli data-section-id=\"1intuy2\" data-start=\"3689\" data-end=\"3728\"\u003eSeiko Calibre 8L45 automatic movement\u003c\/li\u003e\n\u003cli data-section-id=\"114gce1\" data-start=\"3729\" data-end=\"3760\"\u003eAutomatic with manual winding\u003c\/li\u003e\n\u003cli data-section-id=\"aoaclx\" data-start=\"3761\" data-end=\"3792\"\u003eApprox. 72-hour power reserve\u003c\/li\u003e\n\u003cli data-section-id=\"pdxlnu\" data-start=\"3793\" data-end=\"3827\"\u003eAccuracy: +10\/-5 seconds per day\u003c\/li\u003e\n\u003cli data-section-id=\"1g6yj2h\" data-start=\"3828\" data-end=\"3881\"\u003e42.6mm stainless steel case with super-hard coating\u003c\/li\u003e\n\u003cli data-section-id=\"t02j0r\" data-start=\"3882\" data-end=\"3911\"\u003eBlue textured gradient dial\u003c\/li\u003e\n\u003cli data-section-id=\"1eeysuu\" data-start=\"3912\" data-end=\"3956\"\u003eBlue ceramic unidirectional rotating bezel\u003c\/li\u003e\n\u003cli data-section-id=\"1fvpl6u\" data-start=\"3957\" data-end=\"3971\"\u003eDate display\u003c\/li\u003e\n\u003cli data-section-id=\"8ihjkc\" data-start=\"3972\" data-end=\"4002\"\u003eDual-curved sapphire crystal\u003c\/li\u003e\n\u003cli data-section-id=\"ukxftd\" data-start=\"4003\" data-end=\"4045\"\u003eAnti-reflective coating on inner surface\u003c\/li\u003e\n\u003cli data-section-id=\"6gbd4m\" data-start=\"4046\" data-end=\"4082\"\u003eLumiBrite hands, indexes and bezel\u003c\/li\u003e\n\u003cli data-section-id=\"6qv7r4\" data-start=\"4083\" data-end=\"4101\"\u003eScrew-down crown\u003c\/li\u003e\n\u003cli data-section-id=\"157jqun\" data-start=\"4102\" data-end=\"4134\"\u003eSliding micro-adjustment clasp\u003c\/li\u003e\n\u003cli data-section-id=\"wc0qzl\" data-start=\"4135\" data-end=\"4161\"\u003eStainless steel bracelet\u003c\/li\u003e\n\u003cli data-section-id=\"16l4sgj\" data-start=\"4162\" data-end=\"4206\"\u003e300m professional diver's water resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1s7fdrg\" data-start=\"4207\" data-end=\"4239\"\u003eMagnetic resistance: 4,800 A\/m\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SEIKO","offers":[{"title":"Default Title","offer_id":57249276494199,"sku":"HBF002","price":3550.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0402\/0643\/4455\/files\/HBF002J1_ima_4_2026.png?v=1782931508","url":"https:\/\/www.deacons-jewellers.com\/products\/seiko-prospex-marinemaster-jamstec-limited-edition-1968-heritage","provider":"Deacon \u0026 Son  ","version":"1.0","type":"link"}