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
-Cam Switching Chronograph
-Monopusher Chronograph
Date
-Quick Date Correction
Day
Hacking Seconds
Hands
12 Hour Chronograph Hand at 6:00
15 Minute Chronograph Hand at 12:00
30 Minute Chronograph Hand at 12:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Date Window at 3:00
Date Window at 6:00
Day Window at 3:00
Small Seconds Hand at 9:00
Brand
Sellita
Winding
Hand winding
Regulators
Screw Regulator
Production Periods
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Incabloc Double-Cone
Jewels
21
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
-Balance at 1:30
SW500 M a
SW500 M b
SW500 M BV a
SW500 M BV b
SW500 M BV c
SW500 M c
SW500 M MP a
SW500 M MP b
SW500 M MP c
SW500 M MPC a
SW500 M MPC b
SW500 M MPC c
SW501 M a
SW501 M b
SW501 M BV a
SW501 M BV b
SW501 M BV c
SW501 M c
SW501 M MP a
SW501 M MP b
SW501 M MPC a
SW501 M MPC b
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