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
Chronograph
-2-Button
-Column Wheel Chronograph
--8-Column Chronograph
-Flyback Chronograph
Hands
30 Minute Chronograph Hand at 4:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Small Seconds Hand at 8:00
Brand
A. Lange & Söhne
Winding
Hand winding
Regulators
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
2010s
2020s
Frequency
18,000 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
L951.5
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