Vintage 1966 JAPAN SEIKO SPORTSMATIC5 DX 7619-9040 25Jewels Automatic.

Vintage 1966 JAPAN SEIKO SPORTSMATIC5 DX 7619-9040 25Jewels Automatic.

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

Item description

Movement :

• Pet name : 76 SPORTSMATIC5 DX.
• Caliber number : 7619A.
• Movement : Automatic.
• Beat rate : 18000bph.
• Year of manufacture start : 1965's.
• Factory : Kameido.

Externals :

• Serial No. : 6006817.
• Dial No. : JAPAN 7619-9050R AD.
• Glass : Acrylic.
• Case size : About 38mm.
• Lug width : 18mm.
• Band : New Leather Strap.

Condition :

• Used, it runs well.
• Quick set(Day/Date) : Okay.
  Set the day of the week : Kanji only.
  Set of the date: Press the button near the 3:00 position.
  Set of the days of the week : Turn the hour hand for 24 hours to set it.
• 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 1960s Sportsmatic Luxury (1966): Manufactured in 1966—a landmark historical year during Japan's mid-Showa industrial boom—the Seiko Sportsmatic 5 DX reference 7619-9040 represented Suwa Seikosha's elevated ""Deluxe"" execution of the iconic Sportsmatic 5 lineage. Positioned as a premier luxury sports-executive timepiece, the ""DX"" designation brought upgraded jewel counts, high-grade dial finishing, and push-button calendar convenience to corporate leaders.
• The Over-Engineered 25-Jewel Caliber 7619 Automatic Engine: Powering this historic instrument is the elevated 25-jewel Caliber 7619A, an in-house automatic engine operating at a steady frequency of 18,000 vibrations per hour (vph). Featuring an expanded 25-jewel specification to minimize gear-train friction across critical pivots, it includes Seiko's Diashock anti-shock protection, hacking seconds (stop-seconds mechanism), and a dedicated push-button quick-set date mechanism.
• Distinctive Quick-Set Date Pusher and Recessed Crown Architecture: Engineered for exceptional ergonomic utility, the reference 7619-9040 features a signature dual-control setup: a primary recessed crown hidden at 4 o'clock for time-setting paired with a dedicated quick-set date pusher mounted at 2 o'clock. This dual-button case geometry allows rapid date changes with a single press without interrupting timekeeping accuracy.
• Architectural ""9040"" Grammar of Design Case Geometry: Executed in a solid stainless steel case, the reference 9040 features bold, sweeping faceted lugs inspired by early ""Grammar of Design"" principles. The radiant silver sunburst dial showcases mid-60s visual layout harmony, decorated with hand-applied multifaceted hour markers, sharp dauphine hands, a framed day-date display at 3 o'clock, and applied metal ""5"" shield and ""DELUXE"" typography above 6 o'clock.
• The Sovereign Dolphin Case Back Medallion Heritage: The ultimate hallmark of this 1966 vintage treasure sits stamped on the case back: the iconic Seiko Dolphin crest (or deeply etched waterproof dolphin medallion). Certifying its top-tier factory regulation, water-resistant construction, and athletic durability, the 7619-9040 Sportsmatic 5 DX remains an indispensable, highly collectible cornerstone reference representing the golden dawn of Japanese sports-executive horology.

For more information, please look at the pictures.

Notes

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