{"product_id":"vintage-1967-japan-seiko-business-a-8346-8000-27jewels-automatic","title":"Vintage 1967 JAPAN SEIKO BUSINESS-A 8346-8000 27Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1967 JAPAN SEIKO BUSINESS-A 8346-8000 27Jewels 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\u003eBUSINESS-A 8346-8000 27Jewels \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 : BUSINESS-A .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 8346A.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 18000bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1966'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 : 7147017.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 8346-8011T AD.\u003c\/li\u003e\n\u003cli\u003eGlass : Acrylic.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.72mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 204mm.\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 days of the week : Iteration the hour hand at 9:00 and 1:00.\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 \"\"Business-Ace\"\" Professional Evolution (1967):\u003c\/b\u003e In **1967**, the **Seiko Business-A (Ace)** was introduced to capture the spirit of Japan’s rapidly modernizing corporate culture. The reference **8346-8000** was produced by the **Suwa Seikosha** factory as a sophisticated bridge between utilitarian sports models and elite luxury lines. It arrived as a dedicated instrument for the \"\"Business\"\" class, prioritizing a slim, dignified aesthetic that complemented the crisp suits and high-stakes meetings of the late-Showa era.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe High-Grade 27-Jewel Caliber 8346 Heart:\u003c\/b\u003e This watch is powered by the **27-jewel Caliber 8346**, a refined automatic movement operating at **18,000 vibrations per hour (vph)**. In **1967**, the **27-jewel count** was a prestigious specification, utilizing synthetic rubies to minimize friction in the day-date calendar gear train and the winding system. This caliber was part of the celebrated 83-series, which focused on a low-profile, \"\"slender\"\" architecture to ensure the watch sat elegantly and discreetly against the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"8000\"\" Grammar of Design:\u003c\/b\u003e The reference **8346-8000** is a definitive example of early **Seiko Style**. The case features sharp, mirror-polished lugs and a narrow bezel that emphasizes the dial’s expanse. A signature trait is the **crown recessed at the 4 o'clock position**, which was a visual signal of Suwa’s engineering pride—communicating that the automatic winding was so efficient that manual intervention was unnecessary, allowing the sleek symmetry of the case to remain uninterrupted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful \"\"Weekdater\"\" Dial Harmony:\u003c\/b\u003e The dial of the **8346-8000** is a study in clinical luxury, featuring a radiant sunburst silver finish and **hand-applied, multifaceted baton indices**. The dual-calendar window at 3 o'clock houses the day and date, providing essential information for the professional executive. The applied **\"\"Business-A\"\" script** and the Suwa factory symbol remain iconic hallmarks of this era’s high-status branding, prioritizing sophisticated clarity and professional discipline.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eA Landmark of Showa-Era Horological Art:\u003c\/b\u003e Produced in **1967**, the Business-A 8346-8000 remains a highly sought-after reference for collectors who value the \"\"slender\"\" mechanical era. It represents the \"\"Golden Age\"\" of the 83-series, combining **mechanical complexity with a timeless, formal aesthetic**. It stands as a testament to an era when Seiko focused on bringing high-end horological features—once reserved for the few—to the wrists of a new generation of ambitious global professionals.\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\/t1224074782.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":52078118109505,"sku":"t1224074782","price":41300.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_3134ea6a-d399-4bd4-89be-8397902b46c4.jpg?v=1786515508","url":"https:\/\/nonkun.com\/products\/vintage-1967-japan-seiko-business-a-8346-8000-27jewels-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}