Grail Watch Reference
A Reference Library for Watches from Grail Watch
Movement Database
Patent Database
Grail Watch Blog
The Watch Files Podcast
Reference Documents
Vocabulary
About Grail Watch
Email
Instagram
LinkedIn
Mastodon
RSS
Threads
Twitter
Complications
Chronograph
-2-Button
-Cam Switching Chronograph
Date
-Instant Date Change
-Quick Date Correction
Day
-Quick Day Correction
Hacking Seconds
Hand Winding
Hands
30 Minute Chronograph Hand at 3:00
45 Minute Chronograph Hand at 3:00
Central 60 Second Chronograph Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Day Window at 3:00
Small Seconds Hand at 9:00
Brand
-Valjoux
Seiko
-Daini Seikosha
-Grand Seiko
-Suwa Seikosha
Winding
Automatic
-Bi-Directional Automatic Winding
Hand winding
Regulators
Screw Regulator
Tadpole Regulator
Production Periods
1960s
1970s
Frequency
18,000 A/h
28,800 A/h
36,000 A/h
Anti-Shock
Diashock
Incabloc Double-Cone
Jewels
17
25
Balance Mount
Balance Bridge
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
-Balance at 3:00
-Balance at 4:30
Suwa Seikosha 03 Quartz Stream
Seiko 4502
Seiko 4580
Seiko 5246
Valjoux 7730
Sign Up for Grail Watch Updates
