Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
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Complications
Date
-Date by Pointer
-Quick Date Correction
Day
-Outer Day Wheel
Day/Night Indicator
Hacking Seconds
Moon Phase
Hands
Central Date Pointer
Central Hour Hand
Central Minute Hand
Central Moon Phase Wheel
Central Seconds Hand
Date Pointer at 3:00
Date Window at 3:00
Date Window at 6:00
Day Window at 12:00
Day Window at 3:00
Day/Night Indicator Disc at 10:00
Day/Night Indicator Pointer at 10:00
Moon Phase Wheel at 6:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Ginault
Sellita
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
Screw Regulator
Production Periods
2000s
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Incabloc Double-Cone
WJL
Jewels
25
26
31
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 11:00
-Balance at 12:00
Ginault 7275
SW100
SW200-1
SW220-1
SW221-1
SW240-1
SW260-1
SW261-1
SW280-1
SW285-1 a
SW285-1 b
SW288-1
SW290-1
SW295-1
SW400-1
SW461-1
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