Really cool vintage pocket watch from Hamilton Watch Co. Seems to be in good working condition but I am no watch expert so please keep this in mind. Most likely from the early 1900s but not verified. Please check out the video of the watch ticking and moving. Open face style with 17 jewels. Specific numbers and details located on the watch:

AN 5642-1
MFR’S PART NO. 37297
Serial No. H-4687
Hamilton Watch Co.

Inner case back says:
Keystone Base Metal
445963