Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Chronograph
-2-Button
-Column Wheel Chronograph
--5-Column Chronograph
--6-Column Chronograph
-Horizontal Clutch Chronograph
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hands
30 Minute Chronograph Hand at 6:00
Brand
Bulgari
Vénus
Winding
Automatic
-Peripheral Automatic Winding
Hand winding
Regulators
Production Periods
1930s
1940s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Jewels
37
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 4:30
-Barrel at 10:30
-Column Wheel at 7:30
BVL 318
Venus 140
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