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
About Grail Watch
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Complications
24 Hour Hand
Chronograph
-Column Wheel Chronograph
--5-Column Chronograph
-Horizontal Clutch Chronograph
-Monopusher Chronograph
Date
-Quick Date Correction
-Semi-Instantaneous Date Change
GMT Hand
-Independently-Adjustable 12 Hour Hand
Hacking Seconds
Hand Winding
Tourbillon
Hands
30 Minute Chronograph Hand at 3:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Open Heart at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
Kenissi
Norqain
Seiko
-Grand Seiko
-Shizukuishi Watch Studio
Soprod
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Peripheral Automatic Winding
Regulators
Screw Regulator
Screwed Balance
Production Periods
2020s
Frequency
21,600 A/h
28,800 A/h
36,000 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
23
27
28
47
52
Balance Mount
Balance Bridge
Back-Side Features
Balance
-Balance at 12:00
-Balance at 6:00
-Balance at 7:00
-Column Wheel at 7:30
Seiko 9SA Family
Soprod Newton Family
BVL 388
Norqain NN20/1
Norqain NN20/2
Seiko 9SA5
Soprod Newton
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