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
--9-Column Chronograph
-Flyback Chronograph
-Monopusher Chronograph
-Split Seconds Chronograph
Date
-Date by Pointer
-Quick Date Correction
Day
-Quick Day Correction
Month
-Quick Month Correction
Moon Phase
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 12:00
30 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Date Pointer
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Central Split Second Chronograph Hand
Date Window at 6:00
Day Window at 11:30
Hunter Small Seconds Hand
Month Window at 12:30
Moon Phase Wheel at 6:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
-Valjoux
Seiko
-Daini Seikosha
-Grand Seiko
Winding
Hand winding
Regulators
Indexed
Production Periods
1910s
1920s
1930s
1940s
1950s
1960s
1970s
Frequency
18,000 A/h
21,600 A/h
36,000 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
13
17
25
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 12:00
-Balance at 12:30
-Balance at 3:00
Column Wheel
-Column Wheel at 6:00
-Column Wheel at 6:30
Daini Seikosha 45 Stream
Valjoux 23/72 Family
Seiko 4520
Valjoux 23 VZ
Valjoux 230
Valjoux 232
Valjoux 235
Valjoux 237
Valjoux 23C
Valjoux 71 GHH
Valjoux 72 VZH
Valjoux 725
Valjoux 726
Valjoux 72c VZHC
Valjoux 730
Valjoux 76
Valjoux 76 R
Valjoux 88 VZHCL
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