This is a nice Roamer dress watch with an MST 372 movement. This movement was produced with several types of shock protection systems. This one has Shock-Resist and that places the watch in the mid to late 1940s.
It has a US import code on the balance cock; FXU. That means that this watch was imported to the USA from Switzerland and was therefore intended for the US market.
FXU has Roamer and Meyer & Stüdeli listed so the movement is correct (at least the balance cock is).
The movement ran very erratically and setting the time was rough.
When I removed the hands, I found out why the Timegrapher showed me a snowstorm on the screen. The hour hand and the minute hand actually stuck together because of severe magnetism.
I used my Elma Antimag to demagnetize the hands and I demagnetized the trays with parts before I put them in the watch cleaning machine.
