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
Date
-Quick Date Correction
Day/Night Indicator
Hacking Seconds
Moon Phase
Hands
Day/Night Indicator Pointer at 10:00
Brand
Sellita
Winding
Automatic
-Central Rotor Automatic Winding
Hand winding
Regulators
Screw Regulator
Production Periods
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
19
26
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 12:00
SW285-1 a
SW285-1 M a
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