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
Hands
Central Hour Hand
Central Minute Hand
Small Seconds Hand at 6:00
Brand
A. Lange & Söhne
Winding
Hand winding
Regulators
Screwed Balance
Swan Neck Regulator
Production Periods
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
23
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
L051.1
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