Hi, nice watch, thanks for showing!
The movement looks like a cal 89, one of the best there is. But not self-
winding. There is a number next to the balance wheel. Google dateyouriwc and
enter the movement number
and the case number (on the inside of the back cover). This will give you some
idea of when it was made. From the look of the dial my rough guess is second
half of the 1950ies.
Since the watch probably has been lying around a few years you should not run
it for any longer time without having the movement serviced, it needs a clean
and oil. Otherwise the wear on the mechanism will quickly become a problem
since all oils have dried out. Any competent watchmaker can do that (not those
guys that just change batteries and sell cheap watches). The cost of a
service is at a guess a few hundred dollars, but then you will have a
beautiful heirloom that will serve you many years.
The strap is most probably not original, the watch is around 60 years old. A
leather strap dries out and becomes brittle. But
that is not a problem, if you need a new strap, buy something you like.
Please tell us what your decision is, we love to hear from these oldies.
Best regards
Henrik
