Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
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
Naoya Hida
Winding
Hand winding
Regulators
ETACHRON
Production Periods
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Jewels
18
22
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
3/4 Plate
Balance
-Balance at 10:30
Naoya Hida 30 Family
NH 3019SS
NH 3020CS
NH 3021LU
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