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
About Grail Watch
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Complications
Annual Calendar
Chronograph
-2-Button
-3-Button Chronograph
-Column Wheel Chronograph
--8-Column Chronograph
-Flyback Chronograph
-Monopusher Chronograph
-Rattrapante Chronograph
-Split Seconds Chronograph
Date
-Big Date
--Double Wheel Big Date
-Date by Pointer
-Quick Date Correction
Day
-Day by Pointer
Hacking Seconds
Leap Year
Modular
Month
-Month by Pointer
Moon Phase
-122-Year Moon Phase
Perpetual Calendar
Power Reserve Indicator
Tourbillon
Hands
30 Minute Chronograph Hand at 12:00
30 Minute Chronograph Hand at 4:00
Big Date at 1:00
Big Date at 12:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Split Second Chronograph Hand
Date Pointer at 9:00
Day Pointer at 8:00
Day Pointer at 9:00
Day/Night Indicator Pointer at 9:00
Hour Hand at 9:00
Leap Year Pointer at 3:00
Leap Year Pointer at 4:30
Minute Hand at 9:00
Month Pointer at 3:00
Month Pointer at 4:00
Moon Phase Wheel at 6:00
Open Heart at 6:00
Power Reserve Pointer at 12:00
Power Reserve Pointer at 3:00
Power Reserve Pointer at 8:00
Small Seconds Hand at 4:00
Small Seconds Hand at 5:00
Small Seconds Hand at 6:00
Small Seconds Hand at 8:00
Brand
A. Lange & Söhne
Winding
Hand winding
Two Barrel
Regulators
Screwed Balance
Swan Neck Regulator
Variable Inertia Blocks
Production Periods
1990s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
20
23
26
29
36
43
45
53
Balance Mount
Balance Cock
-Balance Cock Clockwise
-Balance Cock Counter-Clockwise
Back-Side Features
-Balance at 4:00
L051.1
L051.2
L051.3
L101.1
L102.1
L1924
L901.0
L951.5
L952.1
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