{"product_id":"seiko-prospex-1968-heritage-diver-s-gmt-ref-hbc001","title":"Seiko Prospex 1968 Heritage Diver’s GMT- Ref. HBC001","description":"\u003ch3 data-path-to-node=\"2\"\u003eNext-Generation Mechanical GMT Diver\u003c\/h3\u003e\n\u003cp data-path-to-node=\"3\"\u003eTake your underwater explorations and global travels further with the Seiko Prospex HBC001 (HBC001J1). This premium timepiece serves as a modern re-interpretation of Seiko’s iconic 1968 dive watch, bringing a major evolutionary leap to the Prospex Sea collection. As one of the first models to feature a mechanical GMT complication built directly into a true professional diver, it allows you to effortlessly track a second time zone via a striking gold-tone 24-hour hand without ever interrupting the main timekeeping hands.\u003c\/p\u003e\n\u003cp data-path-to-node=\"4\"\u003eThe rich pacific green dial features an understated texture reminiscent of deep ocean currents, balanced by high-contrast, oversized hour plots and hands heavily coated in bright LumiBrite for legibility in pitch-black aquatic conditions. Framing the dial is a lustrous, scratch-resistant green ceramic unidirectional rotating elapsed-time bezel with a knurled edge designed for easy operability, even while wearing thick diving gloves.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eEnhanced 300M Depth Rating and New Micro-Adjust Clasp\u003c\/h3\u003e\n\u003cp data-path-to-node=\"6\"\u003eBuilt to survive extreme environments, the HBC001 features an upgraded water resistance of 300 meters (1,000 feet), providing serious professional-grade scuba utility. It is powered by the high-tier, in-house caliber 6R54 automatic GMT movement, operating at 21,600 vibrations per hour and delivering a commanding 3-day (72-hour) power reserve—the longest of any mechanical watch in its class. For symmetry and visual balance, a discreet date window is tucked seamlessly between the 4 and 5 o'clock positions.\u003c\/p\u003e\n\u003cp data-path-to-node=\"7\"\u003eThe watch is built with a 42.0mm stainless steel case treated with a super-hard coating, paired with mirror-finished case sides that reflect its heritage roots. The face is shielded by a flat, scratch-resistant sapphire crystal with an anti-reflective coating on the inner surface. Perfecting the wearability, it comes attached to a sporty three-link stainless steel bracelet equipped with Seiko’s newly redesigned tool-free slide-adjuster clasp. This innovative closure can be easily fine-tuned in six incremental steps of 2.5mm (for a total range of 15mm), letting you perfectly adjust for wrist changes on the go or fit it seamlessly over a wet suit.\u003c\/p\u003e\n\u003cul data-path-to-node=\"8\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,0,0\"\u003e\u003cb data-path-to-node=\"8,0,0\" data-index-in-node=\"0\"\u003eBrand:\u003c\/b\u003e Seiko\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,1,0\"\u003e\u003cb data-path-to-node=\"8,1,0\" data-index-in-node=\"0\"\u003eCollection:\u003c\/b\u003e Prospex Sea (1968 Heritage Re-interpretation)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,2,0\"\u003e\u003cb data-path-to-node=\"8,2,0\" data-index-in-node=\"0\"\u003eModel Number:\u003c\/b\u003e HBC001 (HBC001J1)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,3,0\"\u003e\u003cb data-path-to-node=\"8,3,0\" data-index-in-node=\"0\"\u003eMovement:\u003c\/b\u003e Caliber 6R54 Mechanical Automatic GMT (Hacking \u0026amp; Hand-Winding Capable)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,4,0\"\u003e\u003cb data-path-to-node=\"8,4,0\" data-index-in-node=\"0\"\u003ePower Reserve:\u003c\/b\u003e Approx. 72 Hours \/ 3 Full Days (24 Jewels)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,5,0\"\u003e\u003cb data-path-to-node=\"8,5,0\" data-index-in-node=\"0\"\u003eCase Material:\u003c\/b\u003e Stainless Steel with Super-Hard Coating \u0026amp; Mirror-Polished Sides\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,6,0\"\u003e\u003cb data-path-to-node=\"8,6,0\" data-index-in-node=\"0\"\u003eBezel:\u003c\/b\u003e Green Ceramic Unidirectional Rotating Elapsed Timing Display\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,7,0\"\u003e\u003cb data-path-to-node=\"8,7,0\" data-index-in-node=\"0\"\u003eDial Details:\u003c\/b\u003e Pacific Green Dial with Gold-Tone GMT Hand \u0026amp; 4:30 Date Window\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,8,0\"\u003e\u003cb data-path-to-node=\"8,8,0\" data-index-in-node=\"0\"\u003eLuminescence:\u003c\/b\u003e LumiBrite on Hands, Hour Markers, and Bezel Pip\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,9,0\"\u003e\u003cb data-path-to-node=\"8,9,0\" data-index-in-node=\"0\"\u003eCrystal:\u003c\/b\u003e Sapphire Crystal with Inner Anti-Reflective Coating\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,10,0\"\u003e\u003cb data-path-to-node=\"8,10,0\" data-index-in-node=\"0\"\u003eCase Dimensions:\u003c\/b\u003e 42.0mm Diameter \/ 13.3mm Thickness \/ 48.6mm Lug-to-Lug\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,11,0\"\u003e\u003cb data-path-to-node=\"8,11,0\" data-index-in-node=\"0\"\u003eBracelet:\u003c\/b\u003e Super-Hard Coated Stainless Steel 3-Link Band with 15mm Slide Adjuster Clasp\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"8,12,0\"\u003e\u003cb data-path-to-node=\"8,12,0\" data-index-in-node=\"0\"\u003eWater Resistance:\u003c\/b\u003e 300 Meters (1,000 Feet) Diver's Watch\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":52210120196407,"sku":"HBC001","price":1700.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/4923\/7841\/files\/HBC001J1_ima_2_2026.png?v=1779827935","url":"https:\/\/skeies.com\/products\/seiko-prospex-1968-heritage-diver-s-gmt-ref-hbc001","provider":"Skeie's Jewelers","version":"1.0","type":"link"}