Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Instant Date Change
-Quick Date Correction
-Semi-Instantaneous Date Change
Day
-Instant Day Change
-Outer Day Wheel
Hacking Seconds
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 12:00
Day Window at 3:00
Brand
ETA
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
ETACHRON
Production Periods
1980s
1990s
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Novodiac
Jewels
17
25
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 12:00
Central Rotor
ETA 2804-2
ETA 2824-2
ETA 2834-2
ETA 2836-2
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