{"product_id":"vintage-1973-japan-seiko-lord-matic-weekdater-5606-7231-25jewels-automatic","title":"Vintage 1973 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7231 25Jewels Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1973 JAPAN SEIKO LORD MATIC WEEKDATER 5606-7231 25Jewels 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 5606-7231 25Jewels \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 : 393773.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 5606-7550T.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 36.2mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 19mm.\u003c\/li\u003e\n\u003cli\u003eBand : Wrist size that can be worn is Up to about 193mm.\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 can be in English or Japanese. \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 Sovereign Benchmark of 1973 Executive Luxury (1973):\u003c\/b\u003e Manufactured in **1973**—a milestone historical year during Japan's golden era of high-utility mechanical horology—the **Seiko Lord Matic Weekdater** stood as Suwa Seikosha's preeminent accessible executive dress watch. Sourced under reference **5606-7231**, this model occupied a crucial spot in the LM hierarchy, offering near-chronometer-grade automatic engineering wrapped in sharp, forward-looking Showa-era styling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe Over-Engineered 25-Jewel Caliber 5606 Automatic Engine:\u003c\/b\u003e Powering this historic timepiece is the elevated **25-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 iteration deployed a lavish **25-jewel specification** to control gear-train friction. It features **hacking seconds**, quick-set dual calendar functionality, and smooth manual-winding capability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"7231\"\" Faceted Case Geometry and Contours:\u003c\/b\u003e The reference **5606-7231** is globally distinguished among vintage purists for its distinct, sharp-faceted case architecture. Executed in solid stainless steel, the case features crisp angles, sweeping lug lines, and broad polished bevels inspired by Taro Tanaka's **\"\"Grammar of Design\"\"** principles, engineered to sit low and flush against the wrist.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dual-Calendar Dial Harmony and Bilingual Legibility:\u003c\/b\u003e The dial of the **5606-7231** showcases exceptional early-1970s visual balance, displaying a radiant silver sunburst canvas decorated with **hand-applied, multifaceted rectangular block indices** and razor-sharp hands. Symmetrically framed at 3 o'clock, the dual-calendar window houses a **bilingual (English\/Kanji) day disk** alongside a quick-set date configuration, 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 Legacy:\u003c\/b\u003e Manufactured in the milestone mechanical year of **1973**, the 5606-7231 25-jewel Lord Matic Weekdater remains a highly sought-after, universally respected cornerstone reference for serious vintage Seiko collectors worldwide. It stands as an eternal testament to 1970s Japanese horological design, capturing the precise peak of mechanical daily-wear elegance.\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\/t1239338807.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\"","brand":"Seiko","offers":[{"title":"Default Title","offer_id":52137862725953,"sku":"t1239338807","price":86700.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_fa7c651c-53b6-4bd9-9ccf-743d9b8190a9.jpg?v=1787703552","url":"https:\/\/nonkun.com\/products\/vintage-1973-japan-seiko-lord-matic-weekdater-5606-7231-25jewels-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}