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
-Column Wheel Chronograph
--6-Column Chronograph
--8-Column Chronograph
--9-Column Chronograph
-Flyback Chronograph
-Monopusher Chronograph
-Split Seconds Chronograph
Date
-Quick Date Correction
Day
Month
-Quick Month Correction
Moon Phase
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 Split Second Chronograph Hand
Date Pointer at 12:00
Date Window at 6:00
Day Window at 10:30
Month Window at 1:30
Moon Phase Wheel at 12:00
Small Seconds Hand at 9:00
Brand
-Valjoux
Universal
Winding
Hand winding
Regulators
Production Periods
1910s
1920s
1930s
1940s
1950s
1960s
1970s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Jewels
17
18
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 12:30
Universal 281 Compax
Universal 281 Tri-Compax
Universal 281 Uni-Compax
Valjoux 237
Valjoux 25 SRV
Valjoux 26
Valjoux 54 VB
Valjoux 55 VBR
Valjoux 61 VBB
Valjoux 69 DX
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