{"product_id":"vintage-seiko-grand-seiko-5646-7000","title":"Vintage Seiko Grand Seiko 5646-7000","description":"\u003c!-- VERSION 2: --\u003e\n\u003cstyle\u003e\n.product-details { font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, \"Helvetica Neue\", Arial, sans-serif; line-height: 1.6; color: #333; }\n.product-description { font-size: 1rem; line-height: 1.8; color: #333; margin-bottom: 2rem; padding: 1rem; background-color: #f9f9f9; border-left: 3px solid #333; }\n.product-details h2 { font-size: 1.5rem; font-weight: 600; margin-top: 2rem; margin-bottom: 1rem; border-bottom: 1px solid #e0e0e0; padding-bottom: 0.5rem; }\n.product-details h2:first-of-type { margin-top: 0; }\n.spec-table { width: 100%; margin-bottom: 1.5rem; }\n.spec-row { display: flex; padding: 0.75rem 0; border-bottom: 1px solid #f0f0f0; }\n.spec-row:last-child { border-bottom: none; }\n.spec-label { flex: 0 0 180px; font-weight: 500; color: #666; }\n.spec-value { flex: 1; color: #333; }\n.condition-text { margin: 0.5rem 0; line-height: 1.8; }\n\u003c\/style\u003e\n\n\u003cdiv class=\"product-details\"\u003e\n    \u003c!-- DESCRIPTION PARAGRAPH --\u003e\n    \u003cdiv class=\"product-description\" data-field=\"additionallast\"\u003e\n        \u003cp\u003eVintage 36mm 1970 Seiko Grand Seiko 25J Men's Automatic Wristwatch 5646A Japan Stainless Steel 5646-7000. Discover the ultimate in precision and heritage with this authentic vintage Grand Seiko 56GS (Ref. 5646-7000), crafted by Suwa Seikosha in April 1970. Powered by an adjusted 25-jewel Hi-Beat 28,800 BPH automatic movement, this luxury Japanese dress watch showcases Taro Tanaka’s iconic Grammar of Design aesthetic alongside an original gold GS medallion caseback and day-date complication. An exceptional collector's timepiece, it delivers timeless mid-century styling, razor-sharp case geometry, and peerless mechanical craftsmanship.\u003c\/p\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- SPECIFICATIONS SECTION --\u003e\n    \u003ch2\u003eSpecifications\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"sku\"\u003e\n\u003cdiv class=\"spec-label\"\u003eSKU\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e11022026095159\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"item\"\u003e\n\u003cdiv class=\"spec-label\"\u003eItem\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eWristwatch\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"brand\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBrand\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSeiko\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"model\"\u003e\n\u003cdiv class=\"spec-label\"\u003eModel\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eGrand Seiko\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"reference\"\u003e\n\u003cdiv class=\"spec-label\"\u003eReference\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e5646-7000\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"productionyear\"\u003e\n\u003cdiv class=\"spec-label\"\u003eYear\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e1970\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"dialcolor\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDial Color\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eSilver\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"indices\"\u003e\n\u003cdiv class=\"spec-label\"\u003eIndices\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eBaton Indexes\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"casematerial\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCase Material\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eStainless Steel\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"movement\"\u003e\n\u003cdiv class=\"spec-label\"\u003eMovement\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eAutomatic\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"caliber\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCaliber\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e5646A\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"country\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCountry\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eJapan\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"gender\"\u003e\n\u003cdiv class=\"spec-label\"\u003eGender\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMen's\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"jewels\"\u003e\n\u003cdiv class=\"spec-label\"\u003eJewels\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e25\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"bandmaterial\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBand Material\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eLeather\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"department\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDepartment\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMen\u003c\/div\u003e\n\u003c\/div\u003e\n        \n    \u003c\/div\u003e\n\n    \u003c!-- CONDITION SECTION --\u003e\n    \u003ch2\u003eCondition\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"casecondition\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCase\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eShows hairline scratches.\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"crystal\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCrystal\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eShows hairline scratches.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"dialcondition\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDial\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eHas spotting.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"function\"\u003e\n\u003cdiv class=\"spec-label\"\u003eFunction\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eRunning and keeping time\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"complications\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComplications\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e Day-Date.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n    \u003c\/div\u003e\n\n    \u003c!-- MEASUREMENTS SECTION --\u003e\n    \u003ch2\u003eMeasurements\u003c\/h2\u003e\n    \u003cdiv class=\"spec-table\"\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"diameter\"\u003e\n\u003cdiv class=\"spec-label\"\u003eDiameter\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e36mm\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \u003cdiv class=\"spec-row\" data-field=\"thickness\"\u003e\n\u003cdiv class=\"spec-label\"\u003eThickness\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e11mm\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"lugwidth\"\u003e\n\u003cdiv class=\"spec-label\"\u003eLug Width\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e18mm\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"lugtolug\"\u003e\n\u003cdiv class=\"spec-label\"\u003eLug to Lug\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e42mm\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n        \n    \u003c\/div\u003e\n\n    \u003c!-- ABOUT THE BRAND SECTION --\u003e\n    \u003ch2\u003eAbout the Brand\u003c\/h2\u003e\n    \u003cdiv class=\"product-description\" data-field=\"aboutthebrand\"\u003e\n        \u003cp\u003eSeiko: A beloved brand among collectors, Seiko has long been known for offering exceptional watches at accessible prices. Founded in 1881, the Japanese brand earned worldwide recognition for its divers, sports chronographs, and industry-leading quartz technology. With a lineup that includes historically significant and technically innovative pieces, Seiko remains one of the most widely collected and respected watch brands across all price points.\u003c\/p\u003e\n    \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cscript\u003e\ndocument.addEventListener(\"DOMContentLoaded\",function(){document.querySelectorAll('.product-details h2').forEach(function(h){var n=h.nextElementSibling;if(n\u0026\u0026n.classList.contains('spec-table')\u0026\u0026n.querySelectorAll('.spec-row').length===0){h.style.display='none';n.style.display='none';}});});\n\u003c\/script\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":68700650701043,"sku":"11022026095159","price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5355\/3139\/files\/vintage-36mm-1970-seiko-grand-seiko-mens-automatic-y8xd3wzg.png?v=1794114742","url":"https:\/\/thewatchpreserve.com\/products\/vintage-seiko-grand-seiko-5646-7000","provider":"thewatchpreserve","version":"1.0","type":"link"}