Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
Hands
Central Hour Hand
Central Minute Hand
Date Window at 3:00
Brand
Audemars Piguet
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
Gyromax
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Jewels
36
Balance Mount
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 6:00
Central Rotor
AP 2121
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