Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
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
-Quick Day Correction
Hacking Seconds
Hand Winding
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Brand
Bulova
IWC
Longines
Omega
Patek Philippe
Rado
Rolex
Seiko
-Daini Seikosha
-Grand Seiko
Winding
Automatic
-Bi-Directional Automatic Winding
Battery
Hand winding
Regulators
Quartz
Screw Regulator
Production Periods
1960s
1970s
Frequency
28,800 A/h
36,000 A/h
8,192 Hz
Anti-Shock
Diashock
Jewels
23
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 3:00
-Balance at 5:00
-Battery at 6:00
Beta 21
Seiko 4500
Seiko 4522
Seiko 5206
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