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
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Vertical Clutch Chronograph
Date
-Quick Date Correction
Day
-Quick Day Correction
Hacking Seconds
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 9:00
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Small Seconds Hand at 12:00
Brand
-ESA
Winding
Battery
Regulators
Tuning Fork
Production Periods
1960s
1970s
Frequency
28,800 A/h
300 Hz
Anti-Shock
Jewels
12
7
Balance Mount
Balance Bridge
Back-Side Features
-Balance at 12:00
-Battery at 3:00
Tuning Fork
-Tuning Fork at 11:00
Ebauches SA Swissonic
ESA Dynotron
ESA Mosaba
ESA 9160
ESA 9162
ESA 9164
ESA 9200
ESA 9210
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