JIW / HISTORICAL REFERENCE PROJECT / 日本の時計資料室RESEARCH DESK BULLETIN · NO. 001 ↗
CATALOG / SELECTED RECORDS

The reference catalog.

Search a growing historical index of Japanese watch references. Launch records include both verified milestones and openly provisional research files.

This is an editorial demonstration. The records are research starting points, not published Nurse Station specimens. Dates marked “verify” are not established production claims.

Design illustration of Seiko Lord MaticEditorial illustration
Seiko / Automatic

Lord Matic

5606-7070

A compact, sharply dressed Lord Matic with a 23-jewel automatic caliber, day-date display and familiar late-sixties Seiko design language.

Late 1960s–1970s
Design illustration of Seiko Professional DiverEditorial illustration
Seiko / Quartz

Professional Diver

7C43-6010

A purpose-built quartz diver from the era when practicality, legibility and resilience were the guiding design brief.

Late 1980s–1990s (verify)
Design illustration of Seiko 5 Actus / DXEditorial illustration
Seiko / Automatic

5 Actus / DX

6106-7539

The 6106 family represents the accessible automatic watches that made Japanese mechanical engineering part of everyday life.

1970s (verify)
Design illustration of Seiko Quartz AstronEditorial illustration
Seiko / Quartz

Quartz Astron

35SQ

On December 25, 1969, Seiko commercially introduced the Quartz Astron, establishing a new era of wristwatch timekeeping.

1969
Design illustration of Citizen Seven Star DeluxeEditorial illustration
Citizen / Automatic

Seven Star Deluxe

4-520955 (candidate)

A representative of Citizen’s broad mechanical era, where caseback codes, dial printing and movement markings are essential to dating.

Period unconfirmed
Design illustration of Alba Quartz ChronographEditorial illustration
Alba / Quartz

Quartz Chronograph

V657-6060

ALBA gives the archive a crucial chapter: energetic shapes, unexpected colors and accessible Japanese quartz design.

Period unconfirmed
Design illustration of Seiko SportsmanEditorial illustration
Seiko / Manual

Sportsman

J14020

A small hand-wound mechanical watch from a period of rapid innovation in Japanese mass-market timekeeping.

Around 1960 (verify)
Design illustration of Seiko SilverWaveEditorial illustration
Seiko / Quartz

SilverWave

2A23-0120

A sport-oriented quartz family, with individual caseback and dial references awaiting verification.

Period unconfirmed
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