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
24 Hour Hand
Chronograph
-2-Button
-Cam Switching Chronograph
-Column Wheel Chronograph
--5-Column Chronograph
-Horizontal Clutch Chronograph
-Monopusher Chronograph
Date
-Quick Date Correction
Day
-Day by Pointer
-Quick Day Correction
Hacking Seconds
Hand Winding
Modular
Month
Moon Phase
Tourbillon
-Flying Tourbillon
Hands
12 Hour Chronograph Hand at 6:00
24 Hour Hand at 9:00
30 Minute Chronograph Hand at 12:00
30 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Date Pointer
Central Hour Hand
Central Minute Hand
Date Window at 3:00
Day Window at 11:30
Day Window at 3:00
Hunter Small Seconds Hand
Lépine Small Seconds Hand
Month Window at 12:30
Moon Phase Wheel at 6:00
Open Heart at 6:00
Small Seconds Hand at 6:00
Small Seconds Hand at 9:00
Brand
Bulgari
ETA
-Unitas
-Valjoux
Winding
Automatic
-Peripheral Automatic Winding
Hand winding
Regulators
ETACHRON
Gyromax
Production Periods
1960s
1970s
1980s
1990s
2000s
2010s
2020s
Frequency
18,000 A/h
21,600 A/h
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
11
13
17
52
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 6:00
-Column Wheel at 7:30
BVL 268
BVL 388
ETA 6497-1
ETA 6498-1
ETA 7760
ETA 7761
ETA 7765
ETA 7768
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