Vintage 1970 JAPAN KING SEIKO CALENDAR 5625-7070 25Jewels Automatic.

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

Item description

It's a Automatic Watch, KING SEIKO CALENDAR 5625-7070 25Jewels .
It's in good used condition.
It's difficult to find this valuable watch in such a good condition. Highly recommended for collectors!
Movement :
  • Pet name : 56 KING SEIKO (CALENDAR) .
  • Caliber number : 5625A,B.
  • Movement : Automatic.
  • Beat rate : 28800bph.
  • Year of manufacture start : 1968's.
  • Factory : Suwa.
Externals :
  • Serial number : 041143.
  • Dial number : JAPAN 5625-7070T.
  • Glass : Crystal.
  • Case size : About 35.8mm.
  • Lug width : 18mm.
  • Band : New Leather Strap of SEIKO original.
Condition :
  • Used, it runs well.
  • Quick set(Day/Date) : Okay.
    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 Sovereign Icon of 1970 Mechanical Pride (1970): In **1970**—a monumental year highlighted by the Osaka EXPO '70 and Japan's peak post-war industrial confidence—the **King Seiko (KS)** served as a premier timekeeping statement for the nation's rising executive class. Carrying reference **5625-7070**, this historic masterpiece was born from the **Suwa Seikosha** factory during the absolute golden age of mechanical watchmaking. Positioned to deliver chronometer-level performance, it was engineered for professionals who demanded uncompromising technical excellence and structural dignity.
  • The High-Grade 25-Jewel Caliber 5625 High-Beat Engine: This legendary watch is powered by the magnificent **25-jewel Caliber 5625**, a high-grade automatic movement operating at a high-beat frequency of **28,800 vibrations per hour (8 beats per second)**. The 56-series movement is widely revered by vintage purists for its innovative, low-profile mainplate architecture, which allowed Seiko to design sleeker profiles without sacrificing stability. It integrates premium executive utilities, including a **seconds-hacking mechanism** and a highly responsive date calendar quick-set.
  • The Supreme Execution of the ""Grammar of Design"" Case: The reference **5625-7070** is globally celebrated among collectors as a textbook monument of Taro Tanaka's revolutionary **""Grammar of Design""** philosophy. The solid stainless steel case departs from thin, delicate lines to showcase **incredibly sharp, angular facets and wide, muscular integrated lugs** finished with zero-distortion mirror polishing. This massive, low-slung geometric architecture was explicitly drawn to control light and shadow, defining the visual soul of luxury Japanese watchmaking.
  • Masterful ""Calendar"" Dial Clarity and Symmetry: By utilizing a date-only layout instead of a dual-calendar disk, the dial achieves a high level of **refined visual balance and clean symmetry**. The pristine silver sunburst canvas features **hand-applied, multifaceted chunky block indices** paired with razor-sharp Dauphine hands, ensuring instant legibility under high-stakes boardroom environments. The dial face is beautifully balanced by a neatly framed date window at 3 o'clock and the prestigious applied **""KS"" shield emblem** at 6 o'clock.
  • The Immortal Legacy of the Gold KS Medallion: Manufactured in the milestone year of **1970**, the 5625-7070 remains one of the most highly coveted, universally respected references for serious vintage Seiko enthusiasts worldwide. The ultimate hallmark of its premium internal pedigree sits on the screw-down case back: a **solid gold, crisply embossed ""KS Shield"" Medallion** designed to officially guarantee its high-luxury manufacturing credentials. It stands as a profound testament to an era when Suwa perfected the high-frequency dress watch to an indestructible, heirloom standard.
    • For more information, please look at the pictures.
    Notes
    • Before buying.
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