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
-Bi-Directional Date Correction
-Big Date
--Double Concentric Wheel Big Date
--Double Wheel Big Date
-Instant Date Change
-Quick Date Correction
-Semi-Instantaneous Date Change
Day
-Outer Day Wheel
GMT Hand
-Independently-Adjustable 12 Hour Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Modular
Moon Phase
Power Reserve Indicator
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 3:00
Big Date at 1:30
Big Date at 6:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Power Reserve Pointer
Central Seconds Hand
Date Window at 3:00
Date Window at 4:30
Date Window at 6:00
Day Window at 12:00
Moon Phase Wheel at 6:00
Open Heart at 6:00
Power Reserve Pointer at 12:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
Chanel
ETA
-Valjoux
Kenissi
Nomos
-Deutsche Uhrenwerke
Norqain
Rolex
-Tudor
Seiko
-Credor
-Shizukuishi Watch Studio
Soprod
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
Regulators
DUW
ETACHRON
Microstella
Nomos Swing System
Screw Regulator
Screwed Balance
Soprod
Variable Inertia Blocks
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Diashock
Elastor
Incabloc Double-Cone
Jewels
27
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 2:00
-Balance at 4:00
-Balance at 6:00
-Balance at 7:00
BVL 191
Chanel 12.1
DUW 3001
DUW 6101
ETA 2895-2
ETA 7753
MT5402
Norqain NN20/1
Rolex 3000
Rolex 3035
Rolex 3055
Rolex 3075
Rolex 3085
Seiko 8L36
Soprod C130
Soprod C140
Soprod C145
Zenith 670
Zenith 670 SK
Zenith 672
Zenith 68
Zenith 681
Zenith 691
Zenith 692
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