Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Date
-Instant Date Change
-Quick Date Correction
Hacking Seconds
Hand Winding
Power Reserve Indicator
Hands
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Open Heart at 10:00
Power Reserve Pointer at 3:00
Brand
Claro
Seiko
-Credor
-Shizukuishi Watch Studio
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Regulators
Production Periods
2000s
Frequency
21,600 A/h
43,200 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
18
41
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 4:30
Central Rotor
Claro CL-888
Seiko 8L88
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