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
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
Date
-Date by Pointer
-Instant Date Change
-Quick Date Correction
Day
-Quick Day Correction
-Retrograde Day
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Modular
Power Reserve Indicator
Repeater
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 12:00
30 Minute Chronograph Hand at 3:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Date Window at 4:30
Power Reserve Pointer at 1:00
Power Reserve Pointer at 9:30
Retrograde Day Pointer at 2:30
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Chronoswiss
ETA
-Valjoux
Seiko
-Seiko Instruments Inc.
-Shizukuishi Watch Studio
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Regulators
ETACHRON
Screw Regulator
Production Periods
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
23
24
25
28
29
33
38
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 2:00
-Balance at 3:00
-Balance at 5:00
Chronoswiss C.126
ETA 2094
ETA 7754
Seiko 4S27
Seiko 4S29
Seiko 7S35
Seiko 8L21
Zenith 683
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