Grail Watch Reference
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Complications
24 Hour Hand
Chronograph
-2-Button
-Column Wheel Chronograph
--5-Column Chronograph
--6-Column Chronograph
-Monopusher Chronograph
Date
-Date by Pointer
-Retrograde Date
Day/Night Indicator
GMT Hand
-Independently-Adjustable 12 Hour Hand
Regulator
Hands
Hour Hand at 12:00
Brand
Agenhor
Chronoswiss
Parmigiani Fleurier
Tianjin
-Sea-Gull
Vénus
Winding
Automatic
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Two Barrel
Regulators
ETACHRON
Production Periods
1930s
1940s
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
20
28
30
38
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 7:30
-Barrel at 1:30
-Barrel at 12:00
Central Rotor
Chronoswiss C.122
Chronoswiss C.125
PF317
PF337
ST17F
ST17F2
Venus 140
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