Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Date
-Quick Date Correction
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Small Seconds Hand at 9:00
Brand
Rolex
STP
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
Microstella
Production Periods
2000s
2010s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Paraflex
Jewels
21
26
31
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 6:00
-Barrel at 7:30
Central Rotor
Rolex 3136
STP8-14-11
STP8-14-21
Zenith 693
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