Grail Watch Reference
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Complications
Date
-Quick Date Correction
Day
-Quick Day Correction
Hacking Seconds
Hand Winding
Leap Year
Month
-Quick Month Correction
Moon Phase
Year
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Pointer at 12:00
Date Window at 3:00
Day Pointer at 3:00
Lépine Small Seconds Hand
Month Pointer at 9:00
Moon Phase Wheel at 6:00
Moon Phase Wheel at 9:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Year Wheel at 9:00
Brand
ETA
Seiko
-Shizukuishi Watch Studio
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
Screw Regulator
Production Periods
1980s
1990s
2000s
Frequency
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
20
21
24
25
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:00
-Balance at 4:30
-Barrel at 12:00
Central Rotor
ETA 2890-9
ETA 2891-9
ETA 2892-2
ETA 2895-1
Seiko 4S28
Seiko 4S35
Seiko 8L34
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