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
Chronograph
-2-Button
-Cam Switching Chronograph
-Column Wheel Chronograph
--9-Column Chronograph
Date
-Quick Date Correction
Hacking Seconds
Hands
12 Hour Chronograph Hand at 6:00
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
Date Window at 3:00
Date Window at 4:30
Date Window at 6:00
Small Seconds Hand at 9:00
Brand
ETA
-ESA
-Valjoux
Longines
Seiko
-Credor
-Daini Seikosha
-Grand Seiko
-Shizukuishi Watch Studio
Winding
Battery
Hand winding
Regulators
Quartz
Screw Regulator
Tuning Fork
Production Periods
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
170 Hz
18,000 A/h
21,600 A/h
300 Hz
36,000 A/h
9,350 Hz
Anti-Shock
Incabloc Double-Cone
Jewels
12
17
25
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 3:00
-Battery at 3:00
Column Wheel
-Column Wheel at 6:00
-Tuning Fork at 11:00
-Tuning Fork at 6:00
ETA 2750 Family
Seiko 68 Family
ESA 9162
Longines 6512
Seiko 4580
Valjoux 232
Valjoux 726
Valjoux 7733
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