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
  • Email
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B04

Norqain NN20/2

PF317

PF337

Rolex 3085

Seiko 3819A

Seiko 4S77

Seiko 8L36

Soprod C120