Advice sought on Orator military chronograph

I was going through some old paperwork today and this dropped out of a bag. I bought it possibly as much as 25 years ago, long before I became interested in watch collecting. I vaguely remember that one day it was working, then it wasn't and it got put away and forgotten about. I hadn't seen it for ages and thought I must have sold it, so finding it obviously came as a pleasant surprise. I can move the hands round but the pushers have seized. I suspect that there's a Landeron 48 or 248 inside. There's some GP loss to the back, mostly near the crown and some on the opposite side. As befits a military watch, it has fixed bars. There's minor spotting to the dial.

My question is, what is the best thing to do with it? I have a couple of other chronos that I like more and don't see the need to keep this, but is it worth getting it running? Normally I would sell it as is, but as a military watch it presumably has some increased collectability. This is not a field I know and I would be grateful for any suggestions.

Hi, the Admiralty pattern 3169 is described as a 1/5th of a second stopwatch and some wrist chronos were used, sometimes having the dials adapted to only show the stopwatch function like in my Helvetia 'Stop' where the time telling hands have been removed and the dial replaced.