Seiko

History

The extended history summarises the open references listed under Sources; each statement was checked against the cited passage. Confirm key dates in period documents before relying on them.

Timeline

Seiko's recorded dates, dated events from this profile and its sources, and dated pieces and sales from the object catalogue. Dates are as each record gives them.

1. 1881 · Career

   Kintarō Hattori founded a watch and jewelry shop in Tokyo in 1881 that grew to become a major manufacturer of timepieces.

   Profile text · see Sources

2. 1892 · Career

   The company began producing clocks under the Seikosha name in 1892 before shifting focus to wristwatches.

   Profile text · see Sources

3. 1917 · Career

   Following incorporation in 1917, the firm underwent several name changes, eventually becoming the Seiko Group Corporation in 2022.

   Profile text · see Sources

4. 1950-1959 · Catalogued piece

   Seiko Precision 15 Jewels Railway Issue Open Face Pocket Watch

   Provenance: Catawiki

5. late 1960s · Catalogued piece

   Seiko Diver 'Captain Willard' Reference 6105-8119

   Provenance: Analog:Shift

6. 1969 · Career

   Beginning as a clock and watch retailer and repairer, the firm became Japan's dominant manufacturer, producing pocket watches, railway watches, mechanical chronographs and, in 1969, the first commercially sold quartz wristwatch.

   Profile text · see Sources

7. 1969 · Career

   Series-production quartz wristwatch (Astron, 1969)

   Profile text · see Sources

8. 1969 · Career

   The company launched the world's first commercially sold quartz wristwatch in 1969.

   Profile text · see Sources

9. circa 1970s · Catalogued piece

   Seiko Chronograph 6139-6009

   Provenance: Private listing

10. 1998 · Catalogued piece

    Seiko Hunter Case Pocket Watch 7N07-001A

    Provenance: Catawiki

11. 2000-2010 · Catalogued piece

    Seiko 7N07-001A Quartz Pocket Watch

    Provenance: Catawiki

12. Circa 2016 · Catalogued piece

    Seiko MarineMaster Professional Diver's Bracelet Watch

    Provenance: Bonhams

Current watchmaking & later fate

• Seiko Group Corporation operates as a holding company that owns several subsidiaries, including Seiko Watch Corporation.
• The company produces a wide array of products including clocks, electronic devices, semiconductors, and various types of watches.
• Since 2017, Grand Seiko has been presented as an entirely separate brand from Seiko, though it remains under the same corporate ownership.
• Seiko maintains vertical integration, possessing the facilities to design, manufacture, assemble, and inspect all watch components in-house.

As stated in the references listed under Sources, retrieved 2026-10-27. Ownership and collections change; check the maker's own announcements for the latest position.

Key models

Astron

Introduced in 1969, the Astron was the world's first commercial quartz wristwatch.

Laurel

The Laurel, released in 1913, was the first Japanese-made wristwatch.

Grand Seiko

Launched in 1960, the Grand Seiko collection was originally positioned as the brand's highest-grade domestic watch line.

Major innovations

• Series-production quartz wristwatch (Astron, 1969)
• Automatic chronograph calibre 6139
• Vertically integrated in-house component manufacture
• The company launched the world's first commercially sold quartz wristwatch in 1969.

Known markings

• Case-back serial with year/month digits
• Calibre number stamped on the movement or case back
• The company adopted the Seiko brand name for its mass-produced watches in 1924.
• Seikosha was the name used for the company's early clock production starting in 1892.

Serial numbers

Seiko case serial numbers encode production year and month in a documented scheme, giving a decade-ambiguous but reliable month and year.

Collecting significance

The serial scheme makes Seiko unusually easy to date; dial and hand originality is the main authenticity question.

Identification and dating notes

• Watches produced by the separate Suwa and Daini entities are key to identifying early technological lineage.
• The removal of the Seiko name from Grand Seiko dials after 2017 distinguishes newer luxury models from earlier iterations.

In the object catalogue

30 catalogued objects are recorded under Seiko. Attributions are as given by each source and are not independent authentication.

• 1969 Seiko Automatic Diver (Ref. 6105-8000) "Proof / Proof"Diver's watch · 1969
• 1971 King Seiko Hi-Beat Chronometer Ref. 5626-7040Automatic wristwatch · 1971
• Grand Seiko GS9 Club 'Eagle' SBGE263GMT & world-time watch
• Grand Seiko Spring Drive Chronograph GMT Lion Limited Edition SBGC230Chronograph
• Seiko 'Grandfather Tuna' Professional 600 DiverDiver's watch · c. 1975
• Seiko 'Pepsi' Speedtimer WristwatchChronograph · 1970s (based on 'Water 70 Proof' dial text and reference 6139)
• Seiko 7N07-001A Quartz Pocket WatchHunter-case watch · 2000-2010
• Seiko Alarm-Chronograph Quartz WristwatchChronograph · 1979
• Seiko Bell-Matic automatic alarm wristwatch, ref. 4006-6027Alarm wristwatch · April 1973
• Seiko Calculator Chronograph 6138-7000Chronograph · 1971
• Seiko Chronograph 6139-6009Chronograph · circa 1970s
• Seiko Diver 'Captain Willard' Reference 6105-8119Diver's watch · late 1960s

Browse all 30 in the object catalogue

Provenance

Where the 30 catalogued pieces by Seiko were recorded, with the collectors, owners and sales their records name.

Auction history

Each line is copied from the object's source record and is not independently verified. Holders are as recorded when the piece was catalogued: museum objects may not be on display, and sold lots have since changed hands.