{"product_id":"vintage-1975-japan-seiko-lord-matic-weekdater-5606-8051-23jewels-automatic","title":"Vintage 1975 JAPAN SEIKO LORD MATIC WEEKDATER 5606-8051 23Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1975 JAPAN SEIKO LORD MATIC WEEKDATER 5606-8051 23Jewels 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\u003eLORD MATIC WEEKDATER 5606-8051 23Jewels \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 : 56 LORD MATIC WEEKDATER .\u003c\/li\u003e\n\u003cli\u003eCaliber number : 5606A.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 21600bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1968'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 : 557146.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN5606-8080T.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 37mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\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\u003e Set the day of the week can be in English or Japanese. \u003cbr\u003e Set 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 Sovereign Benchmark of Mid-70s Executive Utility (1975):\u003c\/b\u003e Manufactured in **1975**—a milestone transitional year during the twilight of Seiko's classic mechanical golden age—the **Seiko Lord Matic Weekdater** reference **5606-8051** represented Suwa Seikosha's benchmark accessible executive timepiece. Designed for discerning corporate professionals, this late-series Lord Matic model offered proven automatic engineering paired with sharp, forward-looking mid-1970s Showa-era styling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Proven 23-Jewel Caliber 5606 Automatic Engine:\u003c\/b\u003e Powering this historic timepiece is the renowned **23-jewel Caliber 5606**, an in-house automatic movement operating at a smooth frequency of **21,600 vibrations per hour (vph)**. Celebrated by collectors for its remarkably thin profile and long-term daily stability, this movement features essential executive conveniences including **hacking seconds**, quick-set dual calendar functionality, and smooth manual-winding capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"8051\"\" Sharp-Faceted Case Geometry:\u003c\/b\u003e Sourced in a solid stainless steel case, the reference **5606-8051** is globally recognized among vintage purists for its angular, sharp-faceted case architecture. Featuring sweeping lug shoulders and broad zero-distortion mirror-polished bevels inspired by Taro Tanaka's **\"\"Grammar of Design\"\"** guidelines, the low-profile case sits remarkably flat and flush against the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dual-Calendar Dial Harmony and Visual Balance:\u003c\/b\u003e The dial of the **5606-8051** showcases exceptional mid-1970s visual restraint, displaying a radiant silver or textured canvas set with **hand-applied, multifaceted rectangular block indices** and sharp hands. Symmetrically framed at 3 o'clock, the dual-calendar window houses a **bilingual (English\/Kanji) day disk** alongside a quick-set date wheel, proudly bearing the applied **\"\"LM\"\" emblem** above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Classic of Suwa's Automatic Heritage:\u003c\/b\u003e Produced near the final phase of the iconic 56LM production run in **1975**, the 5606-8051 23-jewel Lord Matic Weekdater remains a highly sought-after, universally respected cornerstone reference for serious vintage Seiko collectors. It stands as an eternal testament to mid-1970s Japanese horological craftsmanship, capturing the precise peak of high-utility automatic daily instruments.\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\/d1238787680.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":52150126084417,"sku":"d1238787680","price":62400.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_527994cb-a078-4369-9372-b91588bd3149.jpg?v=1788151596","url":"https:\/\/nonkun.com\/products\/vintage-1975-japan-seiko-lord-matic-weekdater-5606-8051-23jewels-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}