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
24 Hour Hand
Date
-Quick Date Correction
GMT Hand
-Independently-Adjustable 24 Hour Hand
Hacking Seconds
Hand Winding
Power Reserve Indicator
Hands
Central 24 Hour Hand
Central Hour Hand
Central Minute Hand
Central Seconds Hand
Date Window at 3:00
Power Reserve Pointer at 3:00
Small Seconds Hand at 9:00
Brand
Seiko
-Grand Seiko
-Shizukuishi Watch Studio
Winding
Automatic
-Bi-Directional Automatic Winding
-Central Rotor Automatic Winding
Hand winding
Regulators
Screw Regulator
Production Periods
2010s
2020s
Frequency
28,800 A/h
Anti-Shock
Diashock
Jewels
33
35
Balance Mount
Balance Cock
-Balance Cock Clockwise
Back-Side Features
Balance
-Balance at 1:30
Central Rotor
Seiko 9S61
Seiko 9S63
Seiko 9S65
Seiko 9S66
Seiko 9S68
Sign Up for Grail Watch Updates
