Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
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
Chronograph
-2-Button
-Column Wheel Chronograph
--9-Column Chronograph
-Flyback Chronograph
Date
Tourbillon
-Flying Tourbillon
Hands
30 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Date Window at 4:30
Open Heart at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
-Valjoux
Winding
Hand winding
Regulators
Gyromax
Production Periods
1950s
1960s
1970s
2020s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
13
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 12:00
Column Wheel
-Column Wheel at 6:00
BVL 268
Valjoux 230
Valjoux 234
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