Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
24 Hour Hand
Chronograph
-2-Button
-Cam Switching Chronograph
Date
-Quick Date Correction
Day
-Day by Pointer
-Quick Day Correction
GMT Hand
Hacking Seconds
Hand Winding
Modular
Month
Moon Phase
Hands
12 Hour Chronograph Hand at 6:00
24 Hour Hand at 9:00
30 Minute Chronograph Hand at 12:00
Central 60 Second Chronograph Hand
Central Date Pointer
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 11:30
Month Window at 12:30
Moon Phase Wheel at 6:00
Small Seconds Hand at 9:00
Brand
ETA
-Valjoux
Seiko
Winding
Automatic
-Bi-Directional Automatic Winding
Hand winding
Regulators
Screw Regulator
Valjoux
Production Periods
1970s
1980s
1990s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
17
22
25
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 4:30
-Balance at 7:30
-Barrel at 10:30
-Barrel at 12:00
ETA 7761
ETA 7765
ETA 7768
Seiko 4S12
Seiko 4S25
Seiko 6810
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