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
Leap Year
Moon Phase
Perpetual Calendar
Hands
Central Hour Hand
Central Minute Hand
Date Pointer at 3:00
Day Pointer at 9:00
Leap Year Window at 12:00
Month Pointer at 12:00
Moon Phase Wheel at 6:00
Brand
Vaucher Manufacture
Winding
Automatic
-Micro-Rotor Automatic Winding
--Counter-Clockwise Automatic Winding
Regulators
Variable Inertia Blocks
Production Periods
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Jewels
29
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
VMF 5401/50
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