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
-Instant Date Change
-Quick Date Correction
Day
-Bilingual Day Wheel
-Instant Day Change
-Quick Day Correction
GMT Hand
-Independently-Adjustable 12 Hour Hand
Hacking Seconds
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Brand
Seiko
-Suwa Seikosha
Winding
Battery
Regulators
Quartz
Stepper Motor
Production Periods
1970s
Frequency
16,384 Hz
32,768 Hz
Anti-Shock
Jewels
7
Balance Mount
Back-Side Features
-Battery at 11:00
Seiko 3800A
Seiko 3802A
Seiko 3803A
Seiko 3819A
Seiko 3823A
Seiko 3862A
Seiko 3863A
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