Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
About Grail Watch
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Complications
--5-Column Chronograph
Hands
30 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 6:00
45 Minute Chronograph Hand at 6:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Hour Hand at 12:00
Minute Hand at 12:00
Open Heart at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
Venus
Winding
Automatic
-Peripheral Automatic Winding
Hand winding
Regulators
Production Periods
1930s
1940s
2020s
Frequency
21,600 A/h
Anti-Shock
Jewels
52
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 6:00
-Column Wheel at 7:30
BVL 388
Venus 140
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