Working and was tested over an 18 hour period and kept good time. The 10k rolled gold plated case is 50.3mm in diameter. 1964 Hamilton, Grade 992B, Model 5, 16S, 21J, lever set, stem wind, 6 adjustments, railroad grade, double sunken Montgomery dial with date serial number C489811. Glass has a lot of wear, I think by replacing it would make the pocket watch look 100% better. Case back has some wear, a very tiny crack to dial near 7, otherwise dial just needs a light clean.