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
24 Hour Hand
Date
-Date by Pointer
-Quick Date Correction
Day
-Bilingual Day Wheel
-Outer Day Wheel
-Quick Day Correction
-Retrograde Day
GMT Hand
-Independently-Adjustable 12 Hour Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Modular
Power Reserve Indicator
Hands
24 Hour Hand at 6:00
24 Hour Hand at 9:00
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 12:00
Date Window at 3:00
Date Window at 6:00
Day Window at 12:00
Day Window at 3:00
Open Heart at 7:00
Power Reserve Pointer at 12:00
Power Reserve Pointer at 9:30
Retrograde Day Pointer at 2:30
Small Seconds Hand at 4:30
Small Seconds Hand at 6:00
Brand
Miyota
Parmigiani Fleurier
Seiko
-Credor
-Daini Seikosha
-Grand Seiko
-Shizukuishi Watch Studio
Tianjin
-Sea-Gull
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Hand winding
Regulators
Indexed
Screw Regulator
Screwed Mobile Stud
Tadpole Regulator
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Citizen Parashock
Diashock
Incabloc Double-Cone
Jewels
18
21
23
24
25
28
29
31
33
35
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 5:00
Miyota 8205
Miyota 8215
Miyota 8217
Miyota 8218
Miyota 8219
Miyota 8285
Miyota 82S0
Miyota 82S7
Miyota 8N24
Miyota 8N40
PF110
PF111
Seiko 2L75
Seiko 4S12
Seiko 4S15
Seiko 4S24
Seiko 4S25
Seiko 4S27
Seiko 4S28
Seiko 4S29
Seiko 4S35
Seiko 4S36
Seiko 4S71
Seiko 4S76
Seiko 4S77
Seiko 4S79
Seiko 5206
Seiko 5216
Seiko 5245
Seiko 5246
Seiko 5256
Seiko 9S25
Seiko 9S27
ST1612
ST16N
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