Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
Day
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Brand
Bulova
Winding
Battery
Regulators
Tuning Fork
Production Periods
1970s
Frequency
440 Hz
Anti-Shock
Jewels
Balance Mount
Back-Side Features
Tuning Fork
-Tuning Fork at 1:30
-Tuning Fork at 12:00
Accutron 221
Accutron 230
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