Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
About Grail Watch
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Complications
Hands
Brand
Eterna
Winding
Regulators
Production Periods
1960s
1970s
Frequency
Anti-Shock
Jewels
Balance Mount
Back-Side Features
Eterna-Matic 3000
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