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
Alarm
Chronograph
-2-Button
-Column Wheel Chronograph
--9-Column Chronograph
-Flyback Chronograph
Hands
30 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
A. Schild
-Valjoux
Winding
Hand winding
Two Barrel
Regulators
Production Periods
1950s
1960s
1970s
Frequency
18,000 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
13
17
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 12:00
-Balance at 3:00
Column Wheel
-Column Wheel at 6:00
AS 1475 Family
AS 1475
Valjoux 230
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