{"product_id":"vintage-1971-japan-seiko-lord-matic-special-weekdater-5206-6020-23j-automatic","title":"Vintage 1971 JAPAN SEIKO LORD MATIC SPECIAL WEEKDATER 5206-6020 23J Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1971 JAPAN SEIKO LORD MATIC SPECIAL WEEKDATER 5206-6020 23Jewels Automatic.\u003c\/h3\u003e\u003cp\u003eWelcome to my auction!\u003cbr\u003eI am Japanese who live in Tokyo.\u003c\/p\u003e\n\u003ch4 style=\"font-size: 24px; color : #2B0000; margin-bottom: 18px;\"\u003eItem description\u003c\/h4\u003e\u003cdiv style=\"font-size: 24px; color:red; margin: 0 50px 18px 35px;\"\u003e\nIt's a SEIKO Automatic Watch, \u003cb\u003eLORD MATIC SPECIAL WEEKDATER 5206-6020 23Jewels \u003c\/b\u003e.\u003cbr\u003e\n\u003cb\u003eIt's in good used condition.\u003c\/b\u003e\u003cbr\u003e\nIt's difficult to find this valuable watch in such a good condition.\nHighly recommended for SEIKO collectors!\n\u003c\/div\u003e\n\u003cdl style=\"margin:0 0 34px 90px\"\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eMovement : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003ePet name : 52 LORD MATIC SPECIAL WEEKDATER.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 5206A.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 28800bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1970's.\u003c\/li\u003e\n\u003cli\u003eFactory : Kameido.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eExternals : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003eSerial number : 109322.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 5206-6020R.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 34.7mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : New Leather Strap of SEIKO original.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eCondition : \u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\u003cul\u003e\n\u003cli\u003eUsed, it runs well.\u003c\/li\u003e\n\u003cli\u003eQuick set(Day\/Date) : Okay. \u003cbr\u003eSet the day of the week can be in English or Kanji.\u003cbr\u003eSet of the date : The set at one stage pulling the crown.\u003c\/li\u003e\n\u003cli\u003eThe day difference time of an used watch is about +-1 minute \/ day.\u003c\/li\u003e\n\u003cli\u003eFor practical, everyday use, it would be advisable to have the movement cleaned and oiled.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/dd\u003e\n\u003cdt\u003e\u003cfont color=\"#970000\"\u003e\u003cb\u003eKey Features\u003c\/b\u003e\u003c\/font\u003e\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cli\u003e\n\u003cb\u003eThe Zenith of 1971 Daini Seikosha Engineering (1971):\u003c\/b\u003e Produced in **1971**, a milestone year of industrial refinement and intense factory competition, the **Seiko Lord Matic Special (LM Special)** represented the absolute pinnacle of mid-tier automatic luxury. Manufactured by the legendary **Daini Seikosha (Kameido)** factory under reference **5206-6020**, this high-grade instrument was explicitly engineered to challenge elite Swiss standards. Positioned as a highly reliable, high-frequency daily dress watch, it captured the proud, forward-looking corporate confidence of the mid-Showa era.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Legendary Caliber 5206 High-Beat Automatic Engine:\u003c\/b\u003e This masterpiece is powered by the magnificent **23-jewel Caliber 5206**, a true high-beat automatic engine operating at a swift frequency of **28,800 vibrations per hour (8 beats per second)**. Highly celebrated by horological purists for its superior, over-engineered layout, it served as the technological foundation for the famous ultra-high-grade King Seiko 52-series chronometers. Featuring a robust metal rocker wheel, this movement solved the fragile quick-set weaknesses of other contemporary calibers, ensuring everlasting durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Spontaneous Instantaneous Day-Date Change System:\u003c\/b\u003e A defining technical masterpiece of the Caliber 5206 is its **\"\"spontaneous\"\" instant day-date changeover mechanism**. Unlike standard movements where calendar wheels slowly roll over a span of several hours, this highly complex system triggers a crisp, instantaneous jump of both bilingual day and date disks precisely at midnight. This provides clinical legibility and elite micro-engineering satisfaction for the executive lifestyle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"6020\"\" Flowing Case and Dial Harmony:\u003c\/b\u003e The reference **5206-6020** is globally sought after for its timeless, organic geometric structure. The solid stainless steel case showcases a beautifully integrated cushion profile with polished surfaces and fluid lines that mirror light with gorgeous vintage warmth. The dial displays a radiant, deep sunburst canvas—often in dark grey, silver, or emerald—adorned with bold applied indices and the proud interlocking applied **\"\"LM\"\" Special script** at 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Treasure of the Mechanical Golden Age:\u003c\/b\u003e Manufactured in the pinnacle mechanical year of **1971**, this LM Special remains one of the most highly coveted and technically respected references among serious vintage collectors. It represents the perfect historical intersection where Daini's legendary engineering met 1970s futuristic minimalism and high-utility lifestyle micro-engineering. Built to an uncompromising heirloom standard, it stands as a timeless testament to the golden age of Japanese mechanical design.\u003c\/li\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003cdl style=\"margin:0 0 34px 40px\"\u003e\n\u003cdt style=\"font-size: 24px;font-weight: bolder;\"\u003eFor more information, please look at the pictures.\u003c\/dt\u003e\n\u003cdd\u003e\u003cdiv style=\"margin: 14px 0 40px 0;\"\u003e\u003cimg src=\"https:\/\/nonkun.boy.jp\/img_ebay\/u1238010595.jpg\"\u003e\u003c\/div\u003e\u003c\/dd\u003e\n\u003cdt style=\"font-size: 24px;font-weight: bolder;\"\u003eNotes\u003c\/dt\u003e\n\u003cdd\u003e\n\u003cul style=\"margin-bottom: 18px;\"\u003e\n\u003cli\u003e\n\u003cb\u003eBefore buying.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003eThe vintage watches we sell are inspected and adjusted so they work fine. However, since it is an vintage watch, Please purchase on the assumption that it will be repaired.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eTo prevent shipping accidents.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003ePlease monitor the tracking number until the item arrives and if it stagnates, please investigate at your country post office. Also, please confirm the item when you receive the item.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAbout import taxes.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003eTaxes such as import duties and VAT are not included in the item price or shipping charges, except for items shipped to the US. When you purchase, you will likely be required to pay these fees in your country.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAbout Payment, Shipping, Return.\u003c\/b\u003e\u003cdiv style=\"padding-left : 30px;\"\u003ePayment, Shipping, Return are in accordance with eBay's business policies.\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/dd\u003e\n\u003c\/dl\u003e\u003cbr\u003e","brand":"Seiko","offers":[{"title":"Default Title","offer_id":52078112276801,"sku":"u1238010595","price":83400.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_730ba2d5-6045-4e31-ac4d-dcbe0a56f3b3.jpg?v=1786515368","url":"https:\/\/nonkun.com\/products\/vintage-1971-japan-seiko-lord-matic-special-weekdater-5206-6020-23j-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}