Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
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
-Independently-Adjustable 12 Hour Hand
Hands
12 Hour Chronograph Hand at 6:00
24 Hour Hand at 1:30
24 Hour Hand at 6:00
24 Hour Hand at 9:00
30 Minute Chronograph Hand at 3:00
Big Date at 12:00
Central 24 Hour Hand
Central 60 Second Chronograph 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 4:30
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
Small Seconds Hand at 9:00
Brand
Agenhor
Breitling
Kenissi
Norqain
Parmigiani Fleurier
Rolex
Seiko
-Credor
-Shizukuishi Watch Studio
-Suwa Seikosha
Soprod
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
Battery
Two Barrel
Regulators
Microstella
Quartz
Screw Regulator
Screwed Balance
Soprod
Stepper Motor
Production Periods
1970s
1980s
2000s
2010s
2020s
Frequency
16,384 Hz
28,800 A/h
Anti-Shock
Diashock
Elastor
Incabloc Double-Cone
Jewels
25
27
28
38
47
7
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 2:00
-Balance at 4:30
-Balance at 5:00
-Balance at 6:00
-Balance at 7:00
-Balance at 8:00
-Battery at 11:00
-Column Wheel at 10:30
B04
Norqain NN20/2
PF317
PF337
Rolex 3085
Seiko 3819A
Seiko 4S77
Seiko 8L36
Soprod C120
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