Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Brand
IWC
Winding
Battery
Regulators
Quartz
Production Periods
1970s
Frequency
8,192 Hz
Anti-Shock
Jewels
Balance Mount
Back-Side Features
-Battery at 6:00
Beta 21
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