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
Chronograph
-2-Button
-Cam Switching Chronograph
-Column Wheel Chronograph
--5-Column Chronograph
--6-Column Chronograph
--7-Column Chronograph
--8-Column Chronograph
-Horizontal Clutch Chronograph
-Monopusher Chronograph
-Vertical Clutch Chronograph
Date
-Instant Date Change
-Quick Date Correction
Hacking Seconds
Hands
45 Minute Chronograph Hand at 3:00
Brand
-Valjoux
Landeron
-Tudor
Universal
Venus
Winding
Automatic
Hand winding
Regulators
Indexed
Screwed Balance
Variable Inertia Blocks
Production Periods
1930s
1940s
1950s
1960s
1970s
2010s
2020s
Frequency
18,000 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
17
41
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 12:30
-Balance at 4:30
Column Wheel
-Column Wheel at 10:30
-Column Wheel at 5:00
-Column Wheel at 6:00
Landeron 15
Landeron 16
Landeron 39
MT5813
Universal 281 Uni-Compax
Valjoux 7730
Valjoux 7733
Valjoux 92
Venus 150
Venus 175
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