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
Chronograph
-2-Button
-Column Wheel Chronograph
--6-Column Chronograph
--8-Column Chronograph
Date
-Instant Date Change
-Quick Date Correction
Hacking Seconds
Hand Winding
Power Reserve Indicator
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 9:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 6:00
Open Heart at 9:00
Power Reserve Pointer at 12:00
Small Seconds Hand at 3:00
Small Seconds Hand at 4:30
Brand
Audemars Piguet
ETA
Miyota
Parmigiani Fleurier
Seiko
-Credor
STP
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Micro-Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Two Barrel
Regulators
Screw Regulator
Screwed Balance
Production Periods
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Citizen Parashock
Incabloc Double-Cone
Jewels
17
21
26
27
29
30
34
37
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 3:00
-Balance at 4:00
-Balance at 5:00
-Balance at 7:00
Column Wheel
-Column Wheel at 6:00
Micro Rotor
-Micro Rotor at 2:00
AP 2912
AP 2941
ETA 2894S2
Miyota 6T33
Miyota 8N24
Miyota 8N40
PF707
Seiko 6899
STP6-15
Zenith 670 SK
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