Grail Watch Reference
A Reference Library for Watches from Grail Watch
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About Grail Watch
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Complications
Hands
Central Hour Hand
Central Minute Hand
Brand
Minerva
Winding
Hand winding
Regulators
Cylinder Escapement
Production Periods
1890s
1900s
1910s
1920s
1930s
1940s
Frequency
18,000 A/h
Anti-Shock
Jewels
10
Balance Mount
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 4:30
-Barrel at 10:30
Minerva 18/1
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