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
About Grail Watch
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Complications
24 Hour Hand
Date
-Instant Date Change
-Quick Date Correction
Day
-Outer Day Wheel
-Quick Day Correction
GMT Hand
-Independently-Adjustable 12 Hour Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Tourbillon
-Flying Tourbillon
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 12:00
Open Heart at 6:00
Brand
Bulgari
Rolex
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Peripheral Automatic Winding
Regulators
Microstella
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Elastor
Paraflex
Jewels
24
27
31
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 6:00
BVL 288
Rolex 3035
Rolex 3055
Rolex 3075
Rolex 3085
Rolex 3130
Rolex 3131
Rolex 3132
Rolex 3135
Rolex 3136
Rolex 3155
Rolex 3156
Rolex 3187
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