Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Quick Date Correction
-Semi-Instantaneous Date Change
Hacking Seconds
World Time
Hands
City Window at 3:00
Brand
ETA
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
ETACHRON
Production Periods
1990s
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
21
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 12:00
Central Rotor
ETA 2893-1
ETA 2893-3
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