Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
1979 Citizen Movement Table
Seiko Blue Book Automatic Movement Chronology
Seiko Laurel Brochure
Seiko List of Basic and Derivative Calibres
About Grail Watch
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Complications
Chronograph
-2-Button
-3-Button Chronograph
-Column Wheel Chronograph
--7-Column Chronograph
--8-Column Chronograph
-Split Seconds Chronograph
Date
-Big Date
--Double Wheel Big Date
-Instant Date Change
-Quick Date Correction
Day
-Day by Pointer
Hacking Seconds
Hand Winding
Leap Year
Month
-Month by Pointer
-Quick Month Correction
Moon Phase
-122-Year Moon Phase
Perpetual Calendar
Hands
12 Hour Chronograph Hand at 6:00
30 Minute Chronograph Hand at 3:00
30 Minute Chronograph Hand at 4:00
45 Minute Chronograph Hand at 3:00
Big Date at 12:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Central Split Second Chronograph Hand
Date Pointer at 12:00
Date Window at 3:00
Day Pointer at 8:00
Day Window at 10:30
Day/Night Indicator Pointer at 9:00
Leap Year Pointer at 4:30
Month Pointer at 4:00
Month Window at 1:30
Moon Phase Wheel at 12:00
Moon Phase Wheel at 6:00
Small Seconds Hand at 8:00
Small Seconds Hand at 9:00
Brand
A. Lange & Söhne
Audemars Piguet
Claro
Jaeger-LeCoultre
Martel
Tianjin
-Sea-Gull
Universal
Vacheron Constantin
Venus
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
Screwed Mobile Stud
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
1910s
1930s
1940s
1950s
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
17
18
20
21
45
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 12:30
-Balance at 4:30
-Balance at 5:00
Column Wheel
-Column Wheel at 5:00
-Column Wheel at 6:00
AP 2003
Claro CL-888
L952.1
Martel 1916
ST1612
Universal 281 Compax
Universal 281 Tri-Compax
Universal 281 Uni-Compax
Venus 185
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