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
--5-Column Chronograph
--6-Column Chronograph
--8-Column Chronograph
-Horizontal Clutch Chronograph
-Monopusher Chronograph
Date
-Date by Pointer
Day
Hacking Seconds
Hand Winding
Month
Power Reserve Indicator
Regulator
Tourbillon
-Flying Tourbillon
Year
Hands
Open Heart at 6:00
Brand
A. Lange & Söhne
Audemars Piguet
Bulgari
Chronoswiss
Progress
Soprod
Tianjin
-Sea-Gull
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Peripheral Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Two Barrel
Regulators
ETACHRON
Gyromax
Microstella
Screw Regulator
Screwed Balance
Screwed Mobile Stud
Soprod
Production Periods
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
11
13
20
23
24
25
26
27
28
29
30
52
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 6:00
Column Wheel
-Column Wheel at 6:00
-Column Wheel at 7:30
AP 2889
AP 2924
BVL 268
BVL 288
BVL 388
Chronoswiss C.125
L102.1
Progress 6361
Soprod C145
Soprod M100 Balancier Visible
ST2503
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