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
-Independently-Adjustable 12 Hour Hand
Hands
24 Hour Hand at 1:30
24 Hour Hand at 6:00
24 Hour Hand at 9:00
Big Date at 12:00
Central 24 Hour Hand
Central Date Pointer
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Date Window at 9:00
Day/Night Indicator Disc at 8:00
Hour Hand at 12:00
Hour Hand at 6:00
Minute Hand at 12:00
Minute Hand at 6:00
Retrograde Day Pointer at 2:30
Small Seconds Hand at 6:00
Brand
Agenhor
Kenissi
Norqain
Parmigiani Fleurier
Rolex
Seiko
-Credor
-Shizukuishi Watch Studio
Soprod
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
Two Barrel
Regulators
Microstella
Screw Regulator
Screwed Balance
Soprod
Production Periods
1980s
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Diashock
Elastor
Incabloc Double-Cone
Jewels
25
27
28
38
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 2:00
-Balance at 5:00
-Balance at 6:00
-Balance at 7:00
-Balance at 8:00
Norqain NN20/2
PF317
PF337
Rolex 3085
Seiko 4S77
Seiko 8L36
Soprod C120
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