{"product_id":"serviced-vintage-1962-japan-seiko-sportsmatic-j13045-17jewels-automatic","title":"Serviced Vintage 1962 JAPAN SEIKO SPORTSMATIC J13045 17Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eServiced Vintage 1962 JAPAN SEIKO SPORTSMATIC J13045 17Jewels 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\u003eSPORTSMATIC J13045 17Jewels \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 : SPORTSMATIC .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 2451.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 18000bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1961'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 : 2711393.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN MADE SMAJ13H260ED.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.7mm.\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\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 June  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 Dawn of Everyday Automatic Accessibility (1962):\u003c\/b\u003e In **1962**, the **Seiko Sportsmatic** arrived as a revolutionary mechanical milestone, transforming the automatic watch from an unattainable luxury into an accessible daily reality for Japan's rising post-war workforce. Carrying the historic reference **J13045**, this legendary timepiece was produced by the **Suwa Seikosha** factory during the early, vibrant years of the Showa economic boom. As the direct ideological and technical ancestor to the world-famous \"\"Seiko 5\"\" line, it represents the foundational blueprint of affordable, rugged mechanical luxury.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Bulletproof 17-Jewel Automatic Engine:\u003c\/b\u003e This watch is powered by a foundational **17-jewel automatic movement** (derived from the historic Gyro Marvel and early Seikomatic lineages) operating at a classic **18,000 vibrations per hour (vph)**. In **1962**, this **17-jewel specification** provided the perfect balance of friction reduction and robust structural simplicity. Utilizing an early, highly efficient winding rotor system, this movement was engineered to deliver unrelenting daily reliability for the active modern gentleman without the need for manual interaction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"J-Prefix\"\" Recessed Crown Case Geometry:\u003c\/b\u003e The reference **J13045** features the prestigious **\"\"J\"\" prefix**, identifying it as a highly coveted, authentic early-production run from the start of the decade. The stainless steel or gold-plated case showcases smooth, sweeping circular contours and elegant tapered lugs. To proudly signal to the world that manual winding was a thing of the past, the **time-setting crown is entirely recessed at the 4 o'clock position**, maintaining a perfectly sleek, aerodynamic silhouette that sat flush against the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAbsolute Symmetrical Purity of the Non-Date Dial:\u003c\/b\u003e By completely omitting the constraints of a date window, the dial of the **J13045** achieves a level of **immaculate visual balance and serene symmetry** that later calendar models could never replicate. The radiant silver sunburst canvas is adorned with **hand-applied, faceted baton indices** and sharp Dauphine hands that capture light with beautiful vintage warmth. The stylized, flowing **cursive \"\"Sportsmatic\"\" script logo** below 12 o'clock remains a prestigious hallmark of pre-mid-60s design pride.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA Landmark Cornerstone of Suwa's Automatic Heritage:\u003c\/b\u003e Manufactured in the milestone year of **1962**, the J13045 stands as an investment-grade treasure for purist collectors of early vintage Seiko. It represents the historic historical intersection where high-efficiency self-winding technology moved from elite chronometer-tier watches into everyday urban lifestyles. Complete with an early, crisp production etching on its snap-on reverse, it stands as a profound testament to an era when Japan began its unstoppable ascent to global horological dominance.\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\/q1229426428.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":52078112014657,"sku":"q1229426428","price":47000.0,"currency_code":"JPY","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_695cba35-a148-439e-93f6-6dc5fee9c3ed.jpg?v=1786515362","url":"https:\/\/nonkun.com\/products\/serviced-vintage-1962-japan-seiko-sportsmatic-j13045-17jewels-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}