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
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Vertical Clutch Chronograph
Date
-Quick Date Correction
Day
-Quick Day Correction
GMT Hand
Hacking Seconds
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 9:00
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Small Seconds Hand at 12:00
Brand
Bulova
ETA
-ESA
IWC
Longines
Omega
Patek Philippe
Rado
Rolex
Winding
Battery
Regulators
Quartz
Tuning Fork
Production Periods
1960s
1970s
Frequency
28,800 A/h
300 Hz
360 Hz
8,192 Hz
Anti-Shock
Jewels
12
15
7
Balance Mount
Balance Bridge
Back-Side Features
Battery
Accutron 214
Accutron 218
Beta 21
ESA 9162
ESA 9164
ESA 9200
ESA 9210
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