{"product_id":"vintage-1978-japan-seiko-king-quartz-5856-8080-8jewels-quartz","title":"Vintage 1978 JAPAN SEIKO KING QUARTZ 5856-8080 8Jewels Quartz.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1978 JAPAN SEIKO KING QUARTZ 5856-8080 8Jewels Quartz.\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 Quartz Watch, \u003cb\u003eKING QUARTZ 5856-8080 8Jewels \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 : 58　KING QUARTZ.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 5856A.\u003c\/li\u003e\n\u003cli\u003eMovement : Quartz.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1977'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 : 871169.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 5856-8100S.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 19mm.\u003c\/li\u003e\n\u003cli\u003eBand : Can be adjust the length.\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.\u003cb\u003e Battery replaced\u003c\/b\u003e\n\u003c\/li\u003e\n\u003cli\u003eQuick set(Day\/Date) : Okay.  \u003cbr\u003eSet the day of the week can be in English or Japanese. \u003cbr\u003eSet of the date : The set at one stage pulling the crown.\u003c\/li\u003e\n\u003cli\u003eApproximate watch rate at Japan : Quartz.\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 Apex of 1978 High-End Quartz Leadership (1978):\u003c\/b\u003e Manufactured in **1978**—a historic milestone year during the peak of Japan's quartz revolution and electronic precision mastery—the **Seiko King Quartz** represented Daini Seikosha's executive-tier answer to traditional mechanical luxury. Sourced under reference **5856-8080**, this late-1970s flagship inherited the prestige of the legendary King Seiko line, combining razor-sharp Showa-era styling with unmatched electronic accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 8-Jewel Caliber 5856 Quartz Engine:\u003c\/b\u003e Powering this historic timepiece is the highly revered **8-jewel Caliber 5856**, an in-house high-grade quartz movement built with a lavish **8-jewel specification** to control gear-train pivot wear—an exceptional level of mechanical quality for early quartz calibers. Offering superb monthly timekeeping stability, it features **hacking seconds**, quick-set dual calendar functionality, and a dedicated trimmer capacitor for precise rate regulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"8080\"\" Octagonal Bezel and Integrated Case Geometry:\u003c\/b\u003e The reference **5856-8080** is globally distinguished among vintage Seiko collectors for its striking, geometric **octagonal bezel design**. Executed in solid stainless steel, the case features flat, razor-sharp facets and sweeping integrated lugs finished with zero-distortion mirror polishing inspired by Taro Tanaka's **\"\"Grammar of Design\"\"** principles, allowing the watch to sit remarkably flat and balanced on the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dial Texture and Applied Quartz Crest Harmony:\u003c\/b\u003e The dial of the **5856-8080** displays exceptional visual depth, featuring a fine textured canvas paired with **hand-applied, multifaceted rectangular hour indices** and sharp hands. Symmetrically framed at 3 o'clock, the dual-calendar window houses a **bilingual (English\/Kanji) day disk** alongside the date wheel, proudly signed with the applied **\"\"KING QUARTZ\"\"** typography and the iconic double-comb quartz crest above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Treasure of Daini's Electronic Heritage:\u003c\/b\u003e Manufactured in the milestone year of **1978**, the 5856-8080 King Quartz remains an extraordinarily popular, highly sought-after cornerstone reference for vintage Seiko enthusiasts worldwide. It captures the exact historical era where Japanese quartz engineering achieved luxury status alongside mechanical horology. Built to an uncompromising heirloom standard, it stands as an eternal testament to late-1970s Japanese watchmaking innovation.\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\/g1230288197.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":52078111326529,"sku":"g1230288197","price":93700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_7ff57538-1e78-44e0-a424-a71843cbca15.jpg?v=1786515349","url":"https:\/\/nonkun.com\/products\/vintage-1978-japan-seiko-king-quartz-5856-8080-8jewels-quartz","provider":"NONKUN Japan","version":"1.0","type":"link"}