Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Quick Date Correction
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Brand
Seiko
-Seiko Instruments Inc.
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
ETACHRON
Production Periods
2000s
2010s
Frequency
21,600 A/h
Anti-Shock
Diashock
Jewels
23
Balance Mount
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 3:00
Central Rotor
Seiko 7S35
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