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
Date
-Big Date
-Quick Date Correction
Power Reserve Indicator
Hands
Big Date at 1:00
Hour Hand at 9:00
Minute Hand at 9:00
Power Reserve Pointer at 3:00
Small Seconds Hand at 5:00
Brand
A. Lange & Söhne
Winding
Hand winding
Two Barrel
Regulators
Swan Neck Regulator
Production Periods
1990s
Frequency
21,600 A/h
Anti-Shock
Jewels
53
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 4:00
L901.0
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