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
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Complications
Chronograph
-2-Button
-Cam Switching Chronograph
Hands
30 Minute Chronograph Hand at 3:00
45 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Small Seconds Hand at 9:00
Brand
-Valjoux
Seiko
-Credor
-Daini Seikosha
-Grand Seiko
-Shizukuishi Watch Studio
Winding
Hand winding
Regulators
Screw Regulator
Production Periods
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
18000
36000
Anti-Shock
Jewels
17
25
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 3:00
Seiko 68 Family
Seiko 4580
Valjoux 7733
