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
Chronograph
-2-Button
-Cam Switching Chronograph
Date
-Instant Date Change
-Quick Date Correction
GMT Hand
-Independently-Adjustable 12 Hour Hand
Hacking Seconds
Hand Winding
Hands
30 Minute Chronograph Hand at 12:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Small Seconds Hand at 9:00
Brand
ETA
-Valjoux
Rolex
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
ETACHRON
Microstella
Production Periods
1980s
1990s
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Elastor
Incabloc Double-Cone
Novodiac
Jewels
17
21
27
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 6:00
ETA 2801-2
ETA 2892-2
ETA 7765
Rolex 3085
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