Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
Vocabulary
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Complications
24 Hour Hand
Date
-Quick Date Correction
Hand Winding
Hands
Small Seconds Hand at 4:30
Brand
Miyota
Winding
Automatic
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Regulators
Production Periods
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Citizen Parashock
Jewels
21
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 4:30
Central Rotor
Miyota 8218
Miyota 8219
Miyota 82S5
Miyota 82S7
Miyota 8N40
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