Grail Watch Reference
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Complications
Chronograph
-2-Button
-Column Wheel Chronograph
--8-Column Chronograph
-Flyback Chronograph
Date
Hands
30 Minute Chronograph Hand at 4:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 12:00
Hunter Small Seconds Hand
Lépine Small Seconds Hand
Small Seconds Hand at 6:00
Small Seconds Hand at 7:30
Small Seconds Hand at 8:00
Small Seconds Hand at 9:00
Brand
A. Lange & Söhne
Bulgari
ETA
-Unitas
Parmigiani Fleurier
Winding
Automatic
-Central Rotor Automatic Winding
-Micro-Rotor Automatic Winding
Hand winding
Two Barrel
Regulators
ETACHRON
Mobile Stud
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
2000s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
17
29
31
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 1:30
-Balance at 7:30
-Barrel at 1:30
-Barrel at 12:00
Central Rotor
-Column Wheel at 6:00
-Micro Rotor at 1:30
BVL 138
ETA 6497-2
ETA 6498-2
L951.5
PF442
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