Grail Watch Reference
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Complications
24 Hour Hand
Chronograph
-2-Button
-Cam Switching Chronograph
Date
-Date by Pointer
-Instant Date Change
-Quick Date Correction
Day
-Quick Day Correction
-Retrograde Day
GMT Hand
-Independently-Adjustable 12 Hour Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Hands
12 Hour Chronograph Hand at 6:00
24 Hour Hand at 9:00
30 Minute Chronograph Hand at 12:00
Central 24 Hour Hand
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 6:00
Date Window at 3:00
Day Window at 3:00
Retrograde Day Pointer at 2:30
Small Seconds Hand at 9:00
Brand
ETA
-Valjoux
Nomos
Rolex
Seiko
-Credor
-Shizukuishi Watch Studio
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Seiko Magic Lever Winding
Hand winding
Regulators
Screw Regulator
Valjoux
Production Periods
1980s
1990s
2000s
Frequency
28,800 A/h
Anti-Shock
Diashock
Elastor
Incabloc Double-Cone
Jewels
17
26
28
31
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 4:30
-Balance at 6:00
-Barrel at 12:00
Central Rotor
Nomos 1 Family
ETA 7760
Rolex 3185
Seiko 4S77
Seiko 8L75
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