Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Annual Calendar
Date
-Retrograde Date
Day
-Day by Pointer
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Month
-Month by Pointer
Moon Phase
Hands
Central 24 Hour Hand
Central Date Pointer
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Pointer at 9:00
Month Pointer at 3:00
Moon Phase Wheel at 6:00
Open Heart at 9:00
Small Seconds Hand at 9:00
Brand
Bulgari
Parmigiani Fleurier
Seiko
-Seiko Instruments Inc.
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Clockwise Automatic Winding
Two Barrel
Regulators
ETACHRON
Production Periods
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Diashock
Jewels
24
26
28
32
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 3:00
-Balance at 7:30
-Barrel at 1:30
-Barrel at 10:30
-Barrel at 12:00
-Barrel at 7:30
Central Rotor
BVL 193
PF339
Seiko 4R38
Zenith 693
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