{"product_id":"vintage-1965-japan-seiko-seikomatic-weekdater-6206-8040-26jewels-automatic-1","title":"Vintage 1965 JAPAN SEIKO SEIKOMATIC WEEKDATER 6206-8040 26Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1965 JAPAN SEIKO SEIKOMATIC WEEKDATER 6206-8040 26Jewels Automatic.\u003c\/h3\u003e\u003cp\u003eWelcome to my auction!\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\u003eSEIKOMATIC WEEKDATER 6206-8040 26Jewels \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 : SEIKOMATIC WEEKDATER .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 6206A,B.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 18000bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1963's.\u003c\/li\u003e\n\u003cli\u003eFactory : Suwa.\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 No. : 5N05933.\u003c\/li\u003e\n\u003cli\u003eDial No. : JAPAN 6206-8040T AD.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.1mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 19mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 190mm.\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 : English only.\u003cbr\u003eSet of the date : The set at one stage pulling the crown.\u003cbr\u003eSet of the days of the week : Iteration the hour hand at 9:00 and 12:00\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\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eThe Sovereign Peak of Mid-60s Executive Weekdater Luxury (1965):\u003c\/b\u003e Manufactured in \u003cb\u003e1965\u003c\/b\u003e—a momentous historical year following the 1964 Tokyo Olympics that signaled Japan's golden era of mid-Showa industrial ascendancy—the \u003cb\u003eSeiko Seikomatic Weekdater\u003c\/b\u003e reference \u003cb\u003e6206-8040\u003c\/b\u003e stood as Suwa Seikosha's quintessential business-class flagship. Engineered to bring chronometer-grade presence and dual-calendar executive capability to Japan's rising corporate leadership, this reference remains one of the most balanced expressions of mid-century Japanese dress watchmaking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 26-Jewel Caliber 6206 Automatic Heart:\u003c\/b\u003e Powering this historic watch is the celebrated \u003cb\u003e26-jewel Caliber 6206\u003c\/b\u003e (6206B), an in-house automatic engine operating at a steady frequency of \u003cb\u003e18,000 vibrations per hour (vph)\u003c\/b\u003e. Designed exclusively as a dedicated self-winding caliber, it utilizes Seiko's ultra-efficient \u003cb\u003eMagic Lever\u003c\/b\u003e bi-directional winding mechanism, proprietary \u003cb\u003eDiashock\u003c\/b\u003e anti-shock protection, an upgraded \u003cb\u003e26-jewel specification\u003c\/b\u003e to minimize gear-train friction, and a convenient quick-set date calendar mechanism operated via the crown.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"8040\"\" Case and Recessed Crown Ergonomics:\u003c\/b\u003e Executed in a solid stainless steel case, the reference \u003cb\u003e6206-8040\u003c\/b\u003e showcases classic mid-1960s dress geometry with sweeping tapered lugs, smooth mirror-polished bezel planes, and subtle chamfered edges. In signature Seikomatic style, the case completely conceals a \u003cb\u003eflush-recessed crown at 4 o'clock\u003c\/b\u003e, establishing a perfectly symmetrical circular silhouette that rests completely flat against the wrist and slides effortlessly under a tailored shirt cuff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dual-Calendar Dial Harmony and Arched Day Window:\u003c\/b\u003e The dial of the \u003cb\u003e6206-8040\u003c\/b\u003e is universally admired for its immaculate Showa-era layout symmetry, featuring a radiant silver sunburst canvas framed by a finely grooved outer minute track. It is adorned with \u003cb\u003ehand-applied, multifaceted rectangular block indices\u003c\/b\u003e, crisp dauphine hands, a framed quick-set date aperture at 3 o'clock, and the iconic arched full \u003cb\u003eday-of-the-week window positioned at 6 o'clock\u003c\/b\u003e, proudly signed with vintage cursive \u003cb\u003e\"\"Seikomatic\"\"\u003c\/b\u003e script and the \u003cb\u003e\"\"DIASHOCK 26 JEWELS\"\"\u003c\/b\u003e designation above Suwa's swirl emblem.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Sovereign Dolphin Case Back Medallion Heritage:\u003c\/b\u003e Embellishing the backplate of this 1965 vintage treasure is Seiko's iconic \u003cb\u003eembossed Dolphin crest\u003c\/b\u003e (or deeply stamped waterproof dolphin medallion). Certifying its factory-tested waterproof construction and executive sports-dress heritage, the 6206-8040 26-jewel Seikomatic Weekdater remains an indispensable, highly accessible cornerstone reference for serious vintage Seiko collectors worldwide.\u003c\/li\u003e\n\u003c\/ul\u003e\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\/g1247010067.jpg\"\u003e\u003c\/div\u003e\u003c\/dd\u003e\n\u003cdt style=\"font-size: 24px;font-weight: bolder;\"\u003eNotes\u003c\/dt\u003e\n\u003cdd style=\"margin-left: 16px;\"\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":68232239972673,"sku":"g1247010067","price":91600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_f591ab6d-d4e1-40f6-8188-8fceed61ceb5.jpg?v=1794362184","url":"https:\/\/nonkun.com\/en\/products\/vintage-1965-japan-seiko-seikomatic-weekdater-6206-8040-26jewels-automatic-1","provider":"NONKUN Japan","version":"1.0","type":"link"}