Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Hacking Seconds
Moon Phase
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Moon Phase Wheel at 6:00
Small Seconds Hand at 9:00
Brand
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Two Barrel
Regulators
Production Periods
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Jewels
27
35
37
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 1:30
-Balance at 4:30
-Barrel at 1:30
-Barrel at 10:30
-Barrel at 7:30
Central Rotor
Zenith 6150
Zenith 690
Zenith 692
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