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
24 Hour Hand
Chronograph
-Column Wheel Chronograph
--6-Column Chronograph
-Monopusher Chronograph
Date
-Date by Pointer
Day
-Day by Pointer
Modular
Month
-Month by Pointer
Moon Phase
Regulator
Repeater
Hands
24 Hour Hand at 9:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 3:00
Day Pointer at 9:00
Hour Hand at 12:00
Hour Hand at 3:00
Hour Window at 12:00
Month Pointer at 12:00
Moon Phase Wheel at 6:00
Open Heart at 6:00
Small Seconds Hand at 6:00
Brand
Chronoswiss
Winding
Automatic
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Regulators
ETACHRON
Production Periods
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
29
30
32
38
Balance Mount
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Chronoswiss C.122 Family
Chronoswiss C.121
Chronoswiss C.122
Chronoswiss C.123
Chronoswiss C.124
Chronoswiss C.125
Chronoswiss C.126
Chronoswiss C.127
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