Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Patent Database
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About Grail Watch
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Complications
Hands
Central Hour Hand
Central Minute Hand
Brand
Audemars Piguet
Eterna
Winding
Hand winding
Regulators
Production Periods
1930s
1940s
1950s
Frequency
18,000 A/h
Anti-Shock
Jewels
Balance Mount
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Eterna-Matic Family
AP 9ML
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