{"product_id":"serviced-vintage-1969-japan-seiko-51-seikomatic-p-5106-7030-33j-automatic","title":"Serviced Vintage 1969 JAPAN SEIKO 51 SEIKOMATIC-P 5106-7030 33J Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eServiced Vintage 1969 JAPAN SEIKO 51 SEIKOMATIC-P WEEKDATER 5106-7030 33Jewels 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\u003e51 SEIKOMATIC-P WEEKDATER 5106-7030 33Jewels \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 : 51 SEIKOMATIC-P WEEKDATER .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 5106A.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 19800bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1967'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 : 943270.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 5106-7031R AD.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 37.1mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 198mm.\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 the date: Iteration the hour hand at 8:00 to 12:00.\u003cbr\u003eSet of the date: Press 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 September  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 High-Jewel Apex of the 51 Seikomatic-P Era (1969):\u003c\/b\u003e Manufactured in **1969**—a landmark year during Seiko's golden mechanical age—the **Seiko 51 Seikomatic-P Weekdater** reference **5106-7030** represents Daini Seikosha's pinnacle achievement in high-jewel, multi-functional dress automatics. Positioned as an elite executive timepiece, the \"\"P\"\" designation signaled \"\"Presmatic\"\" innovation, blending cutting-edge calendar convenience with sophisticated movement engineering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 33-Jewel Caliber 5106 Automatic Engine:\u003c\/b\u003e Powering this historic watch is the remarkable **33-jewel Caliber 5106A**, operating at a smooth frequency of **19,800 vibrations per hour (vph)**. Outfitted with an extraordinary **33-jewel count** to minimize gear-train wear, this caliber introduced Daini's famed **hexagonal crown push-button quick-set mechanism** for instantaneous date changes, alongside **hacking seconds** and full manual-winding capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"7030\"\" Sharp-Faceted Case Geometry:\u003c\/b\u003e Sourced in a solid stainless steel case, the reference **5106-7030** exhibits razor-sharp Daini geometry executed strictly under Taro Tanaka's **\"\"Grammar of Design\"\"** guidelines. The case features sweeping, broad lugs, zero-distortion Zaratsu-polished planes, and an integrated recessed crown profile that sits flat and commanding on the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful \"\"Weekdater\"\" Dial Layout and Premium Typography:\u003c\/b\u003e The dial of the **5106-7030** displays clinical late-1960s visual harmony set against a radiant silver sunburst canvas with **hand-applied, multifaceted rectangular block indices**. It features a full dual-calendar display with an arched day window alongside the framed date aperture at 3 o'clock, proudly bearing the applied **\"\"51\"\"** badge, **\"\"Seikomatic-P\"\"** script, and **\"\"33 JEWELS\"\"** designation above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Milestone of Daini's Mechanical Heritage:\u003c\/b\u003e Produced during the prime manufacturing year of **1969**, the 5106-7030 33-jewel Seikomatic-P Weekdater remains a highly sought-after, rare cornerstone reference for vintage Seiko purists. It stands as an eternal testament to Daini Seikosha's innovation, capturing the brief, glorious intersection of ultra-high jewel counts and innovative push-button calendar mechanisms.\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\/x1231861484.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":52210690130241,"sku":"x1231861484","price":73500.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_905b3d3e-e05a-49b4-ab5a-cab833d96146.jpg?v=1789263482","url":"https:\/\/nonkun.com\/en\/products\/serviced-vintage-1969-japan-seiko-51-seikomatic-p-5106-7030-33j-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}