Grail Watch Reference
A Reference Library for Watches from Grail Watch
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About Grail Watch
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Complications
Hands
Central Hour Hand
Central Minute Hand
Brand
Seiko
-Credor
Winding
Hand winding
Regulators
Production Periods
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
Anti-Shock
Jewels
26
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 3:00
-Barrel at 10:30
Seiko 6899
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