{"product_id":"vintage-1972-japan-seiko-lord-matic-special-weekdater-5206-6100-23j-automatic","title":"Vintage 1972 JAPAN SEIKO LORD MATIC SPECIAL WEEKDATER 5206-6100 23J Automatic.","description":"\u003cbr\u003e\u003ch3 style=\"font-size: 32px; color : #2B0000; margin-bottom: 36px;\"\u003eVintage 1972 JAPAN SEIKO LORD MATIC SPECIAL WEEKDATER 5206-6100 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 SPECIAL WEEKDATER 5206-6100 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 : 52 LORD MATIC SPECIAL WEEKDATER.\u003c\/li\u003e\n\u003cli\u003eCaliber number : 5206A.\u003c\/li\u003e\n\u003cli\u003eMovement : Automatic.\u003c\/li\u003e\n\u003cli\u003eBeat rate : 28800bph.\u003c\/li\u003e\n\u003cli\u003eYear of manufacture start : 1970'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 : 296514.\u003c\/li\u003e\n\u003cli\u003eDial number : JAPAN 5206-6120R.\u003c\/li\u003e\n\u003cli\u003eGlass : Crystal.\u003c\/li\u003e\n\u003cli\u003eCase size : About 34.97mm.\u003c\/li\u003e\n\u003cli\u003eLug width : 18mm.\u003c\/li\u003e\n\u003cli\u003eBand : New Leather Strap.\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 Kanji. \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 High-Beat Zenith of 1972 Daini Executive Luxury (1972):\u003c\/b\u003e Manufactured in **1972**—a landmark year during Daini Seikosha's peak mechanical innovation era—the **Seiko Lord Matic Special Weekdater** represented the absolute pinnacle of the LM line. Sourced under reference **5206-6100**, this elite \"\"Special\"\" iteration was produced by Daini Seikosha to directly challenge Suwa's 56LM series, delivering near-KS level mechanical refinements in a compact executive dress package.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThe High-Beat 23-Jewel Caliber 5206 Automatic Heart:\u003c\/b\u003e Powering this historic instrument is the revered **23-jewel Caliber 5206A**, an in-house automatic engine operating at a swift high-beat frequency of **28,800 vibrations per hour (8 beats per second)**. Highly prized by vintage horology purists, this caliber features **hacking seconds**, smooth manual-winding capability, and Daini's rare **instantaneous day-date calendar mechanism** that snaps crisply at midnight.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eArchitectural \"\"6100\"\" Faceted Case Geometry and Grammar of Design:\u003c\/b\u003e Sourced in a solid stainless steel case, the reference **5206-6100** showcases aggressive Daini case geometry with razor-sharp facets and sweeping, angular lugs. Built strictly in accordance with Taro Tanaka's **\"\"Grammar of Design\"\"** philosophy, the broad Zaratsu-polished planes create zero-distortion mirror reflections while maintaining a sleek, low-profile wrist presence.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMasterful Dual-Calendar Dial Harmony and \"\"Special\"\" Typography:\u003c\/b\u003e The dial of the **5206-6100** displays clinical mid-century elegance, featuring a radiant silver sunburst canvas set with **hand-applied, multifaceted rectangular block indices** and sharp hands. Symmetrically framed at 3 o'clock, the dual-calendar aperture houses a **bilingual (English\/Kanji) day disk** alongside a quick-set date wheel, proudly signed with the applied **\"\"LM\"\" emblem**, **\"\"Special\"\"** script, and Daini factory lightning bolt logo above 6 o'clock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAn Investment-Grade Masterpiece of Daini's High-Beat Legacy:\u003c\/b\u003e Produced during the milestone year of **1972**, the 5206-6100 23-jewel Lord Matic Special Weekdater remains one of the most mechanically sophisticated references in the entire LM canon. Combining Daini's 28,800 vph 5200-series platform with sharp Grammar of Design execution, it stands as an essential, investment-grade cornerstone reference for collectors worldwide.\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\/l1239487833.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":52176425681217,"sku":"l1239487833","price":88600.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0995\/8205\/0625\/files\/57_55fcb21d-0175-44b0-81a5-6dc66c103ca8.jpg?v=1788740075","url":"https:\/\/nonkun.com\/en\/products\/vintage-1972-japan-seiko-lord-matic-special-weekdater-5206-6100-23j-automatic","provider":"NONKUN Japan","version":"1.0","type":"link"}