Grail Watch Reference
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Complications
Chronograph
-2-Button
-Column Wheel Chronograph
--6-Column Chronograph
Date
-Big Date
Hands
12 Hour Chronograph Hand at 9:00
30 Minute Chronograph Hand at 3:00
Big Date at 12:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Small Seconds Hand at 6:00
Brand
Vacheron Constantin
Winding
Automatic
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
Hand winding
Regulators
Production Periods
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Jewels
17
18
37
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 10:30
Central Rotor
Column Wheel
-Column Wheel at 1:30
JLC 920 Family
AP 2003
VC 1137
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