Origins and period
Tokyo, Japan
Factory established by Kintaro Hattori in 1892
Abbady Watches A–Z archive · Research page
Seikosha
This page has been created in the permanent archive and is ready for verified history, watch photographs, model identification, and collector information.
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Images needed for Seikosha
Please upload a clear front view, caseback, movement or calibre marking, side profile and crown, clasp or bracelet, and any inscription. Photographs will be captioned without guessing an exact reference.
Seikosha in watchmaking
Seikosha—roughly “house of exquisite workmanship”—was the factory through which Kintaro Hattori moved from retailing into manufacturing clocks and watches. It produced wall clocks, pocket watches, Japan’s Laurel wristwatch, and later instruments and timepieces that formed the industrial foundation of Seiko.
Landmark dates
- Founding and first production
- Important movement or model launch
- Expansion, merger, revival, or modern milestone
Known for
Early Japanese clock production, the Timekeeper pocket watch, the 1913 Laurel, reconstruction after the 1923 earthquake, and the origins of Seiko manufacturing.
Movements and innovation
Calibres, escapements, case construction, water resistance, electronic or quartz development, manufacturing methods, patents, and specialist suppliers.
Identification checklist
- Reference and serial numbers
- Movement calibre and jewel count
- Case material and dimensions
- Dial, hands, crown, crystal, bracelet, and inscriptions
Preservation guidance
Service considerations, originality, replacement parts, water-resistance assumptions, safe storage, and details that should be documented before restoration.
References and credits
Official manufacturer history, museum or archive sources, technical sheets, books, catalogues, advertisements, image credits, and provenance notes.