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
Alarm
Chronograph
-2-Button
-Cam Switching Chronograph
-Modular Chronograph
-Vertical Clutch Chronograph
Date
-Instant Date Change
-Quick Date Correction
Day
-Bilingual Day Wheel
-Instant Day Change
-Quick Day Correction
Hacking Seconds
Hand Winding
Hands
Day Window at 3:00
Brand
A. Schild
Blancpain
Bulova
ETA
-ESA
-Valjoux
Miyota
Seiko
-Credor
-Daini Seikosha
-Seiko Instruments Inc.
--Time Module Inc.
-Suwa Seikosha
Sellita
Tianjin
-Sea-Gull
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
--Counter-Clockwise Automatic Winding
Battery
Hand winding
Two Barrel
Regulators
ETACHRON
Indexed
Quartz
Screw Regulator
Stepper Motor
Tadpole Regulator
Tuning Fork
Production Periods
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
16,384 Hz
21,600 A/h
28,800 A/h
300 Hz
32,768 Hz
360 Hz
440 Hz
Anti-Shock
Citizen Parashock
Diashock
Incabloc Double-Cone
Novodiac
Jewels
12
17
19
21
22
23
24
25
26
31
34
7
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 5:00
-Balance at 7:00
-Battery at 11:00
-Battery at 3:00
Tuning Fork
-Tuning Fork at 11:00
-Tuning Fork at 12:00
Tuning Fork at 2:00
Accuquartz 224
Accutron 219
Accutron 230
AS 5008
BP 1160DD
ESA 9164
ESA 9200
ESA 9210
ETA 2688
ETA 2836-2
ETA 2846
ETA 2858
ETA 2859
ETA 2878
ETA 2879
ETA 7750
ETA 7760
Miyota 6T51
Miyota 8205
Seiko 2L75
Seiko 3803A
Seiko 3823A
Seiko 3863A
Seiko 3883A
Seiko 4R16
Seiko 4R36
Seiko 5206
Seiko 5216
Seiko 5245
Seiko 5246
Seiko 5256
Seiko 7S26
Seiko 7S36
ST2100
SW220-1
SW220-1 M
SW500 a
SW500 BV a
SW500 M a
SW500 M BV a
SW501 a
SW501 BV a
SW501 M a
SW501 M BV a
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