I've been going through some watches that belonged to my wife's great-grandfather, and for the life of me I can't date these two Hamilton's.
The first is a tank style, in pretty immaculate condition. Winds and keeps time wonderfully. The non-original strap was pretty worn, so I took it off.
Markings on the movement are 980, G523387 and the caseback is marked L078068
The second was given to him as a retirement gift in 1958, so I assume it is from within a year or two of then. Again, in very nice condition and runs strong.
No discernible serial number on the movement, but is marked 661 and the caseback has L775862 and K456 as markings.
Thanks in advance for any help.