Vintage 1968 JAPAN SEIKO SPORTSMATIC CALENDAR 7625-8293 17Jewels Automatic.

Vintage 1968 JAPAN SEIKO SPORTSMATIC CALENDAR 7625-8293 17Jewels Automatic.

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Item description

Movement :

• Pet name : SPORTSMATIC CALENDAR 820 .
• Caliber number : 7625A,C,D,E.
• Movement : Automatic.
• Beat rate : 18000bph.
• Year of manufacture start : 1964's.
• Factory : Kameido.

Externals :

• Serial No. : 8117100.
• Dial No. : JAPAN 7625-8320S AD.
• Glass : Acrylic.
• Case size : About 36mm.
• Lug width : 18mm.
• Band : New Leather Strap.

Condition :

• Used, it runs well.
• Quick set(Day/Date) : Okay.
  Set of the date : Iteration the hour hand at 10:00 and 1:00
• 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.
• It's possible only the rotor was replaced.

Key Features

• The Sovereign Icon of Late-60s Everyday Practical Luxury (1968): Manufactured in 1968—a pivotal milestone year during Japan's peak mid-Showa industrial boom—the Seiko Sportsmatic Calendar reference 7625-8293 represented Suwa Seikosha's classic date-only daily workhorse. Serving as an essential pillar of the iconic Sportsmatic lineup, this reference brought robust dependability, refined case ergonomics, and mid-century aesthetic elegance to Japan's rising corporate workforce.
• The Proven 17-Jewel Caliber 7625 Automatic Heart: Powering this historic watch is the revered 17-jewel Caliber 7625, an in-house automatic engine operating at a steady frequency of 18,000 vibrations per hour (vph). Known throughout vintage Seiko scholarship for its mechanical durability and bulletproof reliability, this caliber incorporates Seiko's proprietary Magic Lever bi-directional winding system and Diashock shock protection, utilizing semi-quickset date manipulation between 9 PM and midnight.
• Architectural ""8293"" Case and Recessed Crown Ergonomics: Executed in a solid stainless steel case, the reference 7625-8293 features classic mid-60s case architecture with sweeping tapered lugs and cleanly polished outer bevels. In true Sportsmatic fashion, it integrates a subtle, recessed crown at 4 o'clock, creating a flush and symmetrical bezel silhouette that sits seamlessly against the wrist without digging into the back of the hand.
• Masterful Sunburst Dial Harmony and Calendar Utility: The dial of the 7625-8293 showcases quintessential Showa-era layout balance, featuring a radiant silver sunburst canvas framed by a fine outer minute ring. It is decorated with hand-applied, multifaceted rectangular block indices, sharp dauphine hands, and a neatly framed calendar aperture at 3 o'clock, proudly signed with vintage cursive ""Sportsmatic"" typography and the Suwa Seikosha spiral emblem above 6 o'clock.
• The Sovereign Dolphin Case Back Medallion Heritage: The ultimate hallmark of this 1968 vintage treasure sits engraved on the case back: the iconic Seiko Dolphin crest (or deeply stamped waterproof dolphin medallion). Certifying its factory water-resistant construction and active sports lineage, the 7625-8293 17-jewel Sportsmatic Calendar remains an essential, highly respected entry in any curated vintage Japanese watch collection.

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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