{"product_id":"serviced-vintage-1965-japan-seiko-seikomatic-r-8305-9010-30jewels-automatic","title":"Serviced Vintage 1965 JAPAN SEIKO SEIKOMATIC-R 8305-9010 30Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eServiced Vintage 1965 JAPAN SEIKO SEIKOMATIC-R 8305-9010 30Jewels 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\u003eSEIKOMATIC-R 8305-9010 30Jewels \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-R.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 8305B.\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 number : 5405560.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 8305-9011T AD.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 38mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 19mm.\u003c\/li\u003e\n\u003cli\u003eBand : New Leather Strap.\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\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\u003e\u003cb style=\"color : red\"\u003eOverhaul service in August  2026.\u003cbr\u003eThe movement has been cleaned and oiled, so it works fine.\u003c\/b\u003e\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 Sovereign Benchmark of Mid-60s Executive Refinement (1965):\u003c\/b\u003e Manufactured in **1965**—a milestone historical year during Japan's rapid post-war economic modernization and horological ascendancy—the **Seiko Seikomatic-R 8305-9010** represented the elite flagship tier of Suwa Seikosha's executive line. Designated by the iconic **\"\"R\"\"** moniker for \"\"Refined,\"\" this luxury dress timepiece was engineered to deliver ultra-slim automatic elegance paired with high-grade internal mechanical finishing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 30-Jewel Caliber 8305 Automatic Heart:\u003c\/b\u003e Powering this historic instrument is the highly coveted **30-jewel Caliber 8305A**, an in-house automatic engine operating at a steady frequency of **18,000 vibrations per hour (vph)**. Equipping an executive dress watch in **1965** with a lavish **30-jewel specification** was a monumental statement of micro-engineering luxury. Utilizing synthetic rubies across gear-train pivots to minimize rotor friction, it features **hacking seconds** and smooth manual-winding capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"9010\"\" Fluted Ring and Low-Profile Case Geometry:\u003c\/b\u003e The reference **8305-9010** is globally distinguished among vintage purists for its distinct **fluted inner bezel chapter ring** framing the dial. The solid stainless steel case features slender, sharp-faceted lugs finished with zero-distortion mirror polishing. Designed with an ultra-thin bezel profile and recessed crown at 4 o'clock, it sits completely flush against the wrist, sliding effortlessly under a formal shirt cuff.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eImmaculate Date-Only Dial Balance and Visual Clarity:\u003c\/b\u003e The dial of the **8305-9010** is a masterclass in mid-century visual restraint and high-contrast clarity. Free from day-window clutter, it showcases a radiant silver sunburst canvas decorated with **hand-applied, multifaceted rectangular block indices** and razor-sharp hands. Symmetrically framed at 3 o'clock, the quick-set date window provides instant legibility, proudly signed with **\"\"SEIKOMATIC-R\"\"** and **\"\"30 JEWELS\"\"** typography above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Sovereign Gold Dolphin or Engraved Case Back Heritage:\u003c\/b\u003e The ultimate hallmark of this 1965 treasure sits proudly on the case back: the iconic **embossed gold or deeply engraved Seiko Dolphin crest**. This emblem historically certified its factory-regulated precision standard and water-resistant case construction. Built to an uncompromising heirloom quality, the 8305-9010 30-jewel Seikomatic-R stands as an eternal, investment-grade cornerstone reference for serious vintage Seiko collectors worldwide.\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\/r1229900631.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":52078111260993,"sku":"r1229900631","price":80500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_2dfe4571-1c87-4dbd-bd2a-280ff3d35f41.jpg?v=1786515347","url":"https:\/\/nonkun.com\/products\/serviced-vintage-1965-japan-seiko-seikomatic-r-8305-9010-30jewels-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}