Vintage 1970 JAPAN KING SEIKO CALENDAR 5625-7080 25Jewels Automatic.

Vintage 1970 JAPAN KING SEIKO CALENDAR 5625-7080 25Jewels Automatic.

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

Item description

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 : 002218.
• Dial number : JAPAN 5625-7080T.
• Glass : Crystal.
• Case size : About 37mm.
• 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 Peak of 1970 Executive Luxury (1970): Manufactured in **1970**—a milestone historical year defined by the Osaka Expo '70 and Japan's peak post-war industrial confidence—the **King Seiko Calendar (56KS)** represented the absolute pinnacle of high-society daily prestige. Born from the prestigious **Suwa Seikosha** factory under reference **5625-7080**, this date-only executive watch was engineered specifically to challenge the finest international chronometer houses. It served as an authoritative status symbol during the height of the Showa economic miracle.

The High-Beat 25-Jewel Caliber 5625 Automatic Heart: This timepiece is powered by the legendary **25-jewel Caliber 5625**, an in-house automatic engine operating at a swift high-beat frequency of **28,800 vibrations per hour (8 beats per second)**. Highly celebrated by vintage purists for its remarkably slim architecture and superior daily stability, this movement deploys a lavish **25-jewel specification** to control gear-train friction. It integrates modern executive conveniences including **hacking seconds**, quick-set calendar functionality, and smooth manual-winding capability.

Architectural ""7080"" Flowing Cushion Case Geometry: The reference **5625-7080** is globally distinguished among vintage collectors for its unique, sweeping case architecture. Departing from standard straight lugs, the solid stainless steel case features an organic, **cushion-shaped profile** with broad-shouldered, fluidly curved sides and sharp mirror-polished bevels. This low center-of-gravity design allows the mechanical instrument to sit completely flush against the wrist, sliding weightlessly under a tailored shirt cuff.

Immaculate Date-Only Dial Harmony and Clinical Clarity: The dial of the **5625-7080** is a masterclass in mid-century visual restraint, showcasing a radiant silver sunburst canvas. Free from day-of-the-week window clutter, it features **hand-applied, multifaceted rectangular block indices** with elegant black insert details and razor-sharp hands that catch light with high-contrast legibility. Framed neatly at 3 o'clock, the quick-set date aperture delivers instant split-second legibility for the executive lifestyle.

The Sovereign Gold KS Medallion of Suwa's Heritage: The ultimate hallmark of this 1970 treasure sits proudly on the screw-down case back: a **pristine, solid gold-embossed King Seiko (KS) medallion**. This iconic crest historically certified its elite manufacturing status and factory-regulated timing accuracy. Built to an uncompromising heirloom standard that easily transcends passing fashion trends, the 5625-7080 stands as a profound, investment-grade testament to the golden age of Japanese mechanical design.

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.
  
  
• To prevent shipping accidents.
  Please 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.
  
  
• About import taxes.
  Taxes 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.
  
  
• About Payment, Shipping, Return.
  Payment, Shipping, Return are in accordance with eBay's business policies.