Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Patent Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
Vocabulary
About Grail Watch
Email
Instagram
LinkedIn
Mastodon
RSS
Threads
Twitter
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
Central Seconds Hand
Date Window at 4:30
Open Heart at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
-ESA
-Valjoux
Landeron
Winding
Battery
Hand winding
Regulators
fixed-coil contact-controlled
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
-Balance at 3:00
-Barrel at 12:00
Column Wheel
-Column Wheel at 6:00
-Tourbillon at 6:00
BVL 268
Landeron 4750
Valjoux 230
Valjoux 234
Sign Up for Grail Watch Updates
