WATCH POP

Seeking info on a watch I have recently purchased. Partially to assist in seeking parts. I do not know what calibre the movement is. The parts I need to find are a stem and an onion style crown. Worst case scenario, I guess my watchmaker could make a stem. Not sure what to do about the crown. Watch appears to be a WW1 trench watch.
TIA
Tim
though in different decoration.
Mine just needed a cleaning. IIRC, I was not able to identify it at the time.
Just to be sure, though, can you post a picture of the dial side with some good detail of the keyless parts. I'll try again to look it up in Bestfit.
Cheers,
Paul Thank you Paul! I've seen very similar, if not same calibre, movement in same vintage H. Moser trench watch. 15 jewels I believe.
Problem is, watch was in transit to me and seller messed up shipping address. They had to resend it again yesterday. When it arrives, I can at least get any numbers marked on movement or case.
Tim Well, I got my watch. I got reply from Ulysse Nardin too, but not alot of info.
"Dear Tim:
Based upon the pictures and information that you provided, our vintage
expert searched the archives and was unable to find any reference to this
particular piece. This is due to a gap in our archives. He has however
provided the following information:
This is a standard movement. The enamel dial cannot be fixed. To overhaul
or restore this timepiece would probably exceed the actual value of the
timepiece.
I trust this information has been of assistance to you."
I notice on mine that it would have originally had swivel lugs, as I can see the holes filled for these, and that the wired lugs are an old modification having been done. Mine would have looked exactly as the Signal Corps version, minus the fact that mine has blued steel hour/minute hands and lack of Signal Corps on the dial.
The movement is only marked with 299619 under dial, and what appears to be a single number "1" on the back side of movement. Case inside back is marked with "BBR" where the R appears backwards, and also marked with 139049 on both outer case back and inner case back (or dust cover).
I still can't figure out what calibre this is. I will try to get picture of dial side of movement tonight for keyless works. I need to figure things out, as the watch arrived in pieces and when I put it together, I realized that the intermediate wheel and winding pinion are missing. (on top of not having stem and crown) Ugh.
Tim And pic of dial side of movement finally.
Tim