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
Date
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Brand
Seiko
-Suwa Seikosha
Winding
Battery
Regulators
Quartz
Stepper Motor
Production Periods
1960s
1970s
Frequency
16,384 Hz
8,192 Hz
Anti-Shock
Jewels
7
Balance Mount
Back-Side Features
-Battery at 6:00
Seiko 3502
Seiko 35A
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