Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Date
-Big Date
--Double Concentric Wheel Big Date
-Date by Pointer
-Instant Date Change
-Quick Date Correction
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Moon Phase
Power Reserve Indicator
World Time
Hands
24 Hour Window at 3:00
Airport Window at 9:00
Big Date at 1:30
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Date Window at 6:00
Moon Phase Wheel at 6:00
Power Reserve Pointer at 1:00
Power Reserve Pointer at 9:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Miyota
Nomos
Seiko
-Credor
-Seiko Instruments Inc.
-Shizukuishi Watch Studio
Soprod
Zenith
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
ETACHRON
MSE
Screw Regulator
Triovis
Production Periods
1990s
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
17
23
25
26
27
29
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
3/4 Plate
Balance
-Balance at 1:30
-Balance at 3:00
-Balance at 4:30
-Balance at 7:30
-Barrel at 7:30
Central Rotor
Seiko 6S Family
Miyota 6T33
Nomos Beta
Nomos Delta
Nomos Gamma
Nomos Xi
Seiko 6R27
Soprod A10-2
Zenith 682
Zenith 691
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