Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
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Complications
Tourbillon
Hands
24 Hour Window at 3:00
30 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Date Pointer at 12:00
Mode Indicator at 6:00
Open Heart at 6:00
Open Heart at 9:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
A. Lange & Söhne
Audemars Piguet
Progress
Seiko
-Credor
-Shizukuishi Watch Studio
Winding
Hand winding
Two Barrel
Regulators
Screwed Balance
Screwed Mobile Stud
Production Periods
2000s
2010s
2020s
Frequency
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
20
22
23
25
26
28
29
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 3:00
-Balance at 6:00
Column Wheel
-Column Wheel at 6:00
AP 2889
AP 2913
AP 2924
L102.1
Progress 6361
Seiko 6830
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