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
Annual Calendar
Chronograph
-3-Button Chronograph
-Column Wheel Chronograph
--8-Column Chronograph
-Rattrapante Chronograph
-Split Seconds Chronograph
Date
-Date by Pointer
-Retrograde Date
Day
-Day by Pointer
Leap Year
Modular
Month
-Month by Pointer
Moon Phase
-122-Year Moon Phase
Perpetual Calendar
Power Reserve Indicator
Year
Hands
Day Pointer at 9:00
Brand
A. Lange & Söhne
Chronoswiss
Parmigiani Fleurier
Tianjin
-Sea-Gull
Vaucher Manufacture
Winding
Automatic
-Central Rotor Automatic Winding
-Micro-Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Two Barrel
Regulators
ETACHRON
Screwed Balance
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
26
29
30
32
43
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 8:00
Chronoswiss C.127
L051.3
L101.1
PF339
ST2503
VMF 5401/50
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