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
-Flyback Chronograph
Hands
12 Hour Chronograph Hand at 3:00
12 Hour Chronograph Hand at 6:00
12 Hour Chronograph Hand at 9:00
30 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 4:00
30 Minute Chronograph Hand at 9:00
Big Date at 12:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Split Second Chronograph Hand
Date Pointer at 12:00
Date Window at 4:30
Date Window at 6:00
Small Seconds Hand at 6:00
Small Seconds Hand at 8:00
Small Seconds Hand at 9:00
Brand
A. Lange & Söhne
Audemars Piguet
Blancpain
-Valjoux
Parmigiani Fleurier
Venus
Winding
Automatic
-Central Rotor Automatic Winding
Hand winding
Regulators
Gyromax
Indexed
Screwed Balance
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
1910s
1920s
1940s
1950s
1960s
1970s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
28,800 A/h
36,000 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
13
17
34
35
36
37
40
68
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 12:30
-Balance at 2:00
-Balance at 8:00
Column Wheel
-Column Wheel at 5:00
-Column Wheel at 6:00
-Column Wheel at 6:30
-Column Wheel at 8:00
AP 2923
AP 4401
BP F385
L1924
L951.5
PF335
PF361
Valjoux 230
Valjoux 235
Valjoux 237
Valjoux 3
Valjoux 720
Valjoux 725
Venus 189
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