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
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Complications
Chronograph
-Column Wheel Chronograph
--8-Column Chronograph
-Flyback Chronograph
-Monopusher Chronograph
Date
Hands
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Date Window at 3:00
Small Seconds Hand at 6:00
Brand
A. Lange & Söhne
Audemars Piguet
Jaeger-LeCoultre
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
Gyromax
Screwed Balance
Swan Neck Regulator
Production Periods
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
19,800 A/h
21,600 A/h
Anti-Shock
Elastor
Incabloc Double-Cone
Jewels
36
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 6:00
AP 2120
AP 2121
L1924
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