Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Quick Date Correction
Day
-Quick Day Correction
Hacking Seconds
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Brand
ETA
-ESA
Landeron
Winding
Battery
Regulators
fixed-coil contact-controlled
Tuning Fork
Production Periods
1960s
1970s
Frequency
18,000 A/h
300 Hz
Anti-Shock
Jewels
12
Balance Mount
Balance Cock
Back-Side Features
Balance
-Balance at 3:00
-Battery at 3:00
Tuning Fork
-Tuning Fork at 10:30
ESA 9162
ESA 9164
Landeron 4750
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