Grail Watch Reference
A Reference Library for Watches from 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
-Barrel at 12:00
Central Rotor
-Tourbillon 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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