Grail Watch Reference
A Reference Library for Watches from Grail Watch
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Complications
Chronograph
-2-Button
-Split Seconds Chronograph
Date
-Date by Pointer
-Quick Date Correction
-Retrograde Date
Day
-Day by Pointer
-Quick Day Correction
-Retrograde Day
Grande Complication
Hacking Seconds
Hand Winding
Leap Year
Month
-Month by Pointer
-Quick Month Correction
Moon Phase
Power Reserve Indicator
Repeater
-Minute Repeater
Week Number
Year
Hands
Day Pointer at 3:00
Brand
Audemars Piguet
ETA
Seiko
-Seiko Instruments Inc.
--Time Module Inc.
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
-Uni-Directional Automatic Winding
--Counter-Clockwise Automatic Winding
Regulators
ETACHRON
Screwed Mobile Stud
Production Periods
1990s
2000s
2010s
2020s
Frequency
19,800 A/h
28,800 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
21
29
31
52
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 12:00
-Balance at 3:00
Central Rotor
AP 2885
ETA 2890-9
ETA 2891-9
Seiko 6R20
Seiko 6R21
Seiko 6R24
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