{"product_id":"seiko-haq-the-great-blue-perpetual-calendar-gmt","title":"Seiko HAQ “The Great Blue” Perpetual Calendar GMT","description":"\u003cp data-end=\"450\" data-start=\"69\"\u003e\u003cstrong data-end=\"82\" data-start=\"69\"\u003e\u003cstrong data-start=\"0\" data-end=\"10\"\u003eModel:\u003c\/strong\u003e Seiko HAQ “The Great Blue” Perpetual Calendar GMT (8F56)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"450\" data-start=\"69\"\u003e\u003cstrong data-end=\"82\" data-start=\"69\"\u003eOverview:\u003c\/strong\u003e A highly collectible JDM Seiko HAQ (High Accuracy Quartz) reference, “The Great Blue” is powered by the 8F56 perpetual calendar GMT movement. It features a dual-time function and Seiko’s signature perpetual calendar system, presented on a distinctive blue globe dial with a yellow gmt hand, bi-directional GMT bezel controlled via the left crown.\u003c\/p\u003e\n\u003cp data-end=\"896\" data-start=\"452\"\u003e\u003cstrong data-end=\"464\" data-start=\"452\"\u003eHistory:\u003c\/strong\u003e Released within Seiko’s late-1990s to early-2000s HAQ lineup, “The Great Blue” series represented the brand’s pinnacle of quartz engineering at the time. This specific configuration is considered the most desirable variant due to its sculpted case design, yellow GMT hand, and globe-themed dial execution. It was produced in limited JDM quantities, with both perpetual and non-perpetual variants existing within the broader family.\u003c\/p\u003e\n\u003cp data-end=\"1347\" data-start=\"898\"\u003e\u003cstrong data-end=\"931\" data-start=\"898\"\u003eSpecifications and Condition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"1347\" data-start=\"898\"\u003eOverall: Great Condition\u003cbr data-end=\"995\" data-start=\"992\"\u003eCase: Great Condition\u003cbr data-end=\"1084\" data-start=\"1081\"\u003eCrystal: Clean\u003cbr data-end=\"1162\" data-start=\"1159\"\u003eDial: Serviced\u003cbr data-end=\"1207\" data-start=\"1204\"\u003eMovement: Serviced\u003cbr data-is-only-node=\"\" data-end=\"1257\" data-start=\"1254\"\u003eBracelet\/Strap: Original stock bracelet\u003cbr data-end=\"1299\" data-start=\"1296\"\u003eIncludes: Naked\u003c\/p\u003e\n\u003cp data-end=\"2111\" data-start=\"1349\"\u003e\u003cstrong data-end=\"1362\" data-start=\"1349\"\u003eMovement:\u003c\/strong\u003e Seiko 8F56 HAQ (High Accuracy Quartz)\u003cbr data-end=\"1403\" data-start=\"1400\"\u003ePerpetual calendar (pre-programmed date system, no manual adjustment under normal conditions)\u003cbr data-end=\"1499\" data-start=\"1496\"\u003eGMT function with 24-hour hand\u003cbr data-end=\"1532\" data-start=\"1529\"\u003eBi-directional inner GMT bezel controlled via left crown\u003cbr data-end=\"1591\" data-start=\"1588\"\u003eIndependent hour adjustment capability for travel time changes\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-end=\"2194\" data-start=\"2113\"\u003e\u003cstrong data-end=\"2128\" data-start=\"2113\"\u003eDimensions:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2194\" data-start=\"2113\"\u003eApprox. 38mm diameter\u003cbr data-end=\"2156\" data-start=\"2153\"\u003e20mm lug width\u003cbr data-end=\"2174\" data-start=\"2171\"\u003e12mm thickness\u003c\/p\u003e\n\u003cp data-end=\"2596\" data-start=\"2196\"\u003e\u003cstrong data-end=\"2215\" data-start=\"2196\"\u003eDesign Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-end=\"2596\" data-start=\"2196\"\u003eBlue globe dial representing world\/time theme\u003cbr data-end=\"2264\" data-start=\"2261\"\u003eYellow GMT hand for clear secondary time indication\u003cbr data-end=\"2318\" data-start=\"2315\"\u003eBi-directional inner GMT bezel (controlled via left crown)\u003cbr data-end=\"2379\" data-start=\"2376\"\u003eCurved case architecture unique to this reference\u003cbr data-end=\"2431\" data-start=\"2428\"\u003eBalanced sport-dress hybrid profile\u003cbr data-is-only-node=\"\" data-end=\"2469\" data-start=\"2466\"\u003eStrong JDM HAQ design identity with technical aesthetic focus\u003cbr data-end=\"2533\" data-start=\"2530\"\u003eHighly legible multi-time zone layout with layered dial depth\u003c\/p\u003e\n\u003cp data-is-only-node=\"\" data-is-last-node=\"\" data-end=\"2973\" data-start=\"2598\"\u003e\u003cstrong data-end=\"2615\" data-start=\"2598\"\u003eClosing Note:\u003c\/strong\u003e “The Great Blue” stands as one of the most sought-after executions within Seiko’s HAQ catalog, combining technical precision with a highly distinctive design language. Its perpetual calendar GMT functionality, globe dial, and unusual crown-operated bezel system make it a standout piece within Seiko’s quartz heritage and a true collector-focused reference.\u003c\/p\u003e","brand":"JDM Horologist","offers":[{"title":"Default Title","offer_id":48856759697651,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/4984\/1907\/files\/0q4wnp0_d.webp?v=1776582520","url":"https:\/\/jdmhorologist.net\/products\/seiko-haq-the-great-blue-perpetual-calendar-gmt","provider":"JDM Horologist","version":"1.0","type":"link"}