Vintage 1975 JAPAN SEIKO LORD MATIC WEEKDATER 5606-8061 23Jewels Automatic.

Welcome to my auction!
I am Japanese who live in Tokyo.

Item description

It's a SEIKO Automatic Watch, LORD MATIC WEEKDATER 5606-8061 23Jewels .
It's in good used condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for SEIKO collectors!
Movement :
  • Pet name : 56 LORD MATIC WEEKDATER .
  • Caliber number : 5606A.
  • Movement : Automatic.
  • Beat rate : 21600bph.
  • Year of manufacture start : 1968's.
  • Factory : Suwa.
Externals :
  • Serial number : 516836.
  • Dial number : JAPAN 5606-8090Ｔ.
  • Glass : Crystal.
  • Case size : About 36.7mm.
  • Lug width : 18mm.
  • Band : Wrist size that can be worn is Up to about 195mm.(The buckle has an elastic function.)
Condition :
  • Used, it runs well.
  • Quick set(Day/Date) : Okay.
    Set the day of the week can be in English or Kanji.
    Set of the date : The set at one stage pulling the crown.
  • The day difference time of an used watch is about +-1 minute / day.
  • For practical, everyday use, it would be advisable to have the movement cleaned and oiled.
Key Features
  • The Milestone of Mid-70s Executive Maturity (1975): In **1975**, the **Seiko Lord Matic (LM)** stood as the definitive timekeeping standard for Japan's high-ranking professionals and modern management class. The reference **5606-8061** was produced by the **Suwa Seikosha** factory during a transitional historical era when mechanical watchmaking reached its absolute structural peak to confidently stand alongside the explosive rise of early quartz technology. It offered the ambitious Showa-era business leader a perfect blend of high-end mechanical slimness and the contemporary, sharp-edged aesthetics required for leadership.
  • The Proven 23-Jewel Caliber 5606 Heart: This watch is powered by the **23-jewel Caliber 5606**, an ultra-slim high-grade automatic movement operating at **21,600 vibrations per hour (vph)**. In **1975**, the 56-series was world-renowned for its innovative low-profile architecture, allowing Seiko to build more ergonomic and sleek dress profiles without sacrificing structural stability. Featuring premium corporate functions such as **hacking seconds**, manual winding capability, and an integrated day-date quick-set, this robust 23-jewel engine remains a masterclass in daily reliability.
  • Architectural ""8061"" Sharp Geometric Case Design: The reference **5606-8061** is celebrated for its incredibly sharp and commanding case geometry. The stainless steel case features perfectly flat, angled facets and robust integrated lug profiles that beautifully showcase Taro Tanaka's **""Grammar of Design""** legacy. Frequently paired with a dramatic **faceted crystal (cut glass)**—a major luxury fashion trend in **1975**—this specific architecture maximized executive wrist presence by shattering and scattering light, while maintaining a remarkably low-profile silhouette that sat flush under a tailored sleeve.
  • Masterful ""Weekdater"" Dial Harmony: The dial of the **5606-8061** is a study in clinical mid-century luxury, showcasing a radiant sunburst finish and **hand-applied, multi-faceted block indices** that create incredible visual depth under the faceted crystal. The dual-calendar window at 3 o'clock houses a **bilingual (English/Kanji) day disk**, prioritizing instant professional legibility for the modernizing Japanese workforce. The applied **""LM"" logo** and the Suwa lightning bolt symbol at 6 o'clock remain prestigious hallmarks of an era that valued bold industrial pride.
  • A Landmark of Suwa's Slim Mechanical Legacy: Produced in the milestone year of **1975**, the 5606-8061 remains a highly coveted reference for vintage collectors who value the **""Mechanical Golden Age.""** It represents the perfect historical intersection where rugged daily durability met avant-garde 1970s structural aesthetics and high-utility micro-engineering. It stands as a profound testament to an era when Suwa Seikosha perfected the **""Professional Executive Daily Watch,""** creating a reliable and visually striking masterpiece that transcends passing horological trends.
    • For more information, please look at the pictures.
    Notes
    • Before buying.
      The 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.

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