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
-Instant Date Change
Hands
Big Date at 1:30
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Date Window at 4:30
Date Window at 6:00
Day Window at 12:00
Day Window at 3:00
Moon Phase Wheel at 6:00
Power Reserve Pointer at 1:00
Small Seconds Hand at 9:00
Brand
Claro
ETA
Rolex
Seiko
-Daini Seikosha
-Grand Seiko
Tianjin
-Sea-Gull
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
ETACHRON
Microstella
Screw Regulator
Production Periods
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
36,000 A/h
Anti-Shock
Elastor
Incabloc Double-Cone
Novodiac
Jewels
17
18
21
25
26
27
31
32
38
41
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 11:00
-Balance at 12:00
-Balance at 3:00
-Balance at 4:30
-Balance at 6:00
Claro CL-888
ETA 2688
ETA 2834-2
ETA 2836-2
ETA 2846
ETA 2852
ETA 2853
ETA 2858
ETA 2859
ETA 2872
ETA 2873
ETA 2878
ETA 2879
Rolex 3035
Rolex 3075
Rolex 3085
Rolex 3135
Rolex 3185
Seiko 4502
Seiko 4522
ST2100
ST2130
Zenith 650
Zenith 655
Zenith 660
Zenith 670
Zenith 670 SK
Zenith 672
Zenith 682
Zenith 683
Zenith 684
Zenith 685
Zenith 6850
Zenith 687
Zenith 691
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