Posted 1 year ago
This is a Hamilton 4992B, 16 size, 22 jewel, U.S. Govt. marked, serial number 4C35719 (c. 1941-42) watch with a G.C.T. dial.
The Keystone case back cover is marked:
MFR'S . PART NO.-33106
SERIAL NO. AF-52-11.278
HAMILTON WATCH CO.
Thanks for looking,
(any information on the back cover markings is appreciated)