Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Date
-Date by Pointer
-Quick Date Correction
Day
-Quick Day Correction
-Retrograde Day
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Power Reserve Indicator
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Power Reserve Pointer at 9:30
Retrograde Day Pointer at 2:30
Brand
Seiko
-Credor
Winding
Automatic
-Bi-Directional Automatic Winding
Regulators
Screw Regulator
Production Periods
2000s
2010s
Frequency
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
25
31
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 4:30
-Balance at 6:00
-Barrel at 12:00
Seiko 4L75
Seiko 4S36
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