Stauffer Watch Co. Square Gold-Filled Wristwatch Movement Identification

Hello all,

I have this small square / rectangular Stauffer watch with a lovely gold-filled case that reminds me a little of a Patek 2476 (not only due to its shape, but also the funky "bombe" crystal).





Presumably it's from the 40s or 50s. Today I finally opened it up to see what's inside, and this is what came out:






As far as I can see, it says: Stauffer Watch Co, 17 Jewels, Unadjusted, Swiss, TXF.

I found out TXF was the US import code for Stauffer: http://www.ranfft.de/uhr/info-uscode-e.html

Now I would like to find out more about this specific movement, but I haven't been able to find anything online. I found this website: https://www.vintagewatchstraps.com/stauffer.php but it only details the earlier years of Stauffer, when they were slightly more significant.

Could this be a movement produced by Stauffer themselves (Atlas factory)? Or does anyone with sharp eyes and better knowledge recognize another maker in it?

I realize it's a long shot without any further information. As far as I could tell, there is no reference number anywhere on movement or case. I was also not able to take any better photos of the movement with my phone.

The reason I would like to know about the movement is that I like to have spare movements (or parts) around for all my vintage watches I plan on keeping for a long time (and wearing for a long time!).

Thanks for reading, here are some more photos of the watch:

Thanks a lot!

I'm not going to attempt to separate dial and hands from movement, it's quite a feat I managed to open the case without damaging anything 😀

There seems to be no stamp there; will have to wait till this lockdown is over at some point and then go to a watchmaker to find out more, then.