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
24 Hour Hand
Date
-Date by Pointer
-Instant Date Change
-Quick Date Correction
Day
-Quick Day Correction
-Retrograde Day
Day/Night Indicator
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Power Reserve Indicator
World Time
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Power Reserve Pointer
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Date Window at 4:30
Power Reserve Pointer at 1:00
Power Reserve Pointer at 3:00
Power Reserve Pointer at 9:30
Retrograde Day Pointer at 2:30
Small Seconds Hand at 9:00
Brand
Rolex
Seiko
-Credor
-Grand Seiko
-Shizukuishi Watch Studio
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
Screw Regulator
Production Periods
1980s
1990s
2000s
2010s
Frequency
28,800 A/h
Anti-Shock
Diashock
Jewels
26
27
31
38
41
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 2:00
-Balance at 5:00
Rolex 3100 Family
Seiko 4S76
Seiko 9S55
Seiko 9S67
Zenith 68
Zenith 6850
Zenith 687
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