Interesting specimen. Looks nice to me. You did well pricewise if the movement is serviced and 'healthy'.
I have seen those watch shops in Vietnam. Very interesting items.
Now lads, here's a story for you. I did make a post of this years ago, you saggy old veterans might recall my anecdote:
Many years ago, there was a shady cobbler selling a plethora of military fakes (IWC Mark X, Rolex M.O.D. 5517, Blanpain 50 Fathoms, Omega SM300, Longines Greenlander, Omega WWW, JLC WWW, Breguet Type XX, Dodane Type XX or XXI, Tutima BUND/NATO, Sinn BUND/NATO, etc). This seller was the only source for the very faked M.O.D. issued SM300. And let me tell ya... This dude caused a sensation in the watch world. He was ripping people off left and right! I know that there were some people who went to Vietnam so that they could personally kick his [censored] for all the trouble this guy caused. Of course, soon after the success of this cobbler, a few other dudes started appearing on the vintage military watch market. Soon, all sorts of unique fakes/frankens were being made.
I myself was a proud owner of a faked British military issue M.O.D. IWC Type 48 made by mystery man. This was in the mid-late 1990's by the way.