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
-Column Wheel Chronograph
--7-Column Chronograph
-Split Seconds Chronograph
Date
-Quick Date Correction
Hacking Seconds
Hand Winding
Regulator
Tourbillon
Hands
12 Hour Chronograph Hand at 6:00
24 Hour Hand at 9:00
30 Minute Chronograph Hand at 3:00
60 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Central Split Second Chronograph Hand
Date Window at 3:00
Hour Hand at 12:00
Lépine Small Seconds Hand
Open Heart at 12:00
Open Heart at 6:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
A. Lange & Söhne
ETA
Frédéric Piguet
Maurice Lacroix
Seiko
-Shizukuishi Watch Studio
STP
Tianjin
-Sea-Gull
Venus
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
--Clockwise Automatic Winding
Hand winding
Regulators
ETACHRON
Screw Regulator
Screwed Balance
Swan Neck Regulator
Production Periods
1940s
1950s
1990s
2000s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Ultraflex
Jewels
20
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 2:00
Column Wheel
-Column Wheel at 5:00
ETA 2000-1
FP 810
L102.1
ML 106
Seiko 8L34
ST17F
ST17F2
STP1-11M
STP5-15M
Venus 185
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