{"product_id":"vintage-seiko-day-date-chronograph-6139-8002","title":"Vintage Seiko Day-Date Chronograph 6139-8002","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\u003eThe Seiko 6139-8002 is a vintage Japanese automatic chronograph powered by the iconic Seiko Caliber 6139B movement. Produced in the early 1970s, it is celebrated as one of the pioneering automatic chronographs, featuring a robust design, day\/date function, and Seiko’s innovative chronograph technology.\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\"\u003e07302026093200\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\"\u003eDay-Date Chronograph\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\"\u003e6139-8002\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\"\u003e1971\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\"\u003e6139B\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\"\u003eSwiss\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\"\u003e21\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 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        \n        \u003cdiv class=\"spec-row\" data-field=\"bezelcondition\"\u003e\n\u003cdiv class=\"spec-label\"\u003eBezel\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eIt has hairline scratches.\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"crown\"\u003e\n\u003cdiv class=\"spec-label\"\u003eCrown\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eShows desk marks.\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"hands\"\u003e\n\u003cdiv class=\"spec-label\"\u003eHands\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eThe hour hand is discolored. The minute hand is discolored.\u003c\/div\u003e\n\u003c\/div\u003e\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, but may be in need of service. This means, it can run unreliably, start or stop and timekeeping is not guaranteed\u003c\/div\u003e\n\u003c\/div\u003e\n        \n        \u003cdiv class=\"spec-row\" data-field=\"timing\"\u003e\n\u003cdiv class=\"spec-label\"\u003eTiming Data\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003eMinus 89 Seconds\/day, 119 Amp, 1.8 BE\u003c\/div\u003e\n\u003c\/div\u003e\n        \u003cdiv class=\"spec-row\" data-field=\"complications\"\u003e\n\u003cdiv class=\"spec-label\"\u003eComplications\u003c\/div\u003e\n\u003cdiv class=\"spec-value\"\u003e Chronograph and Day-Date.\n\n30-Minute Register\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\"\u003e37mm\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\"\u003e16mm\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\"\u003e19mm\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\"\u003e43mm\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":51403321966835,"sku":"07302026093200","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0633\/5355\/3139\/files\/1786389719060_uk4xpg_WW_20625_20-_201_20of_2048.jpg?v=1789701557","url":"https:\/\/thewatchpreserve.com\/products\/vintage-seiko-day-date-chronograph-6139-8002","provider":"thewatchpreserve","version":"1.0","type":"link"}