Grail Watch Reference
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Complications
Alarm
Chronograph
-Column Wheel Chronograph
--6-Column Chronograph
Date
Modular
Repeater
Hands
30 Minute Chronograph Hand at 3:00
Alarm Indicator at 9:00
Central 60 Second Chronograph Hand
Central Alarm Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Chronoswiss
-Valjoux
Vénus
Winding
Automatic
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Regulators
Indexed
Mobile Stud
Screwed Balance
Production Periods
1910s
1920s
1930s
1940s
1950s
1960s
1970s
2000s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Jewels
17
21
38
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 1:30
-Barrel at 7:30
Central Rotor
Chronoswiss C.126
Valjoux 5 KVM
Venus 230
Venus 232
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