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
Date Window at 4:30
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
170 Hz
28,800 A/h
300 Hz
32,768 Hz
360 Hz
440 Hz
8,192 Hz
9,350 Hz
Anti-Shock
Jewels
12
15
7
Balance Mount
Balance Bridge
Back-Side Features
-Balance at 12:00
Battery
-Battery at 3:00
-Battery at 4:00
-Battery at 6:00
Tuning Fork
-Tuning Fork at 11:00
-Tuning Fork at 12:00
-Tuning Fork at 6:00
Tuning Fork at 2:00
Accuquartz 224
Accutron 214
Accutron 218
Accutron 219
Accutron 221
Accutron 230
Beta 21
ESA 9160
ESA 9162
ESA 9164
ESA 9200
ESA 9210
Longines 6512
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