Welcome to the forum.
Your watch is a Malnija, numbers engraved on the movement tells the year of production, I beleive including which plant produced it.
A bereguet overcoil based on Eberhard I think.
Sorry I don't remember how those numbers are decoded.
I just started looking up some of my old pocket watches and found this site and hope to get some ideas and give some help as well.
so I was looking up my pocket watches serial numbers and ran into this unique watch. It looks Russian or possibly Belgian. Can you help me in the I’d and year produced?
it runs great. As you can see it’s in pretty good condition. Any help would be great. Thanks so much.
I thought the crown wheel 420 is on the top like this one.. https://www.ebay.com/itm/PATEK-PHILIPPE-CAL-215-CROWN-WHEEL-NEW-WATCH-MOVEMENT-PART-420-/123903845490
The other part is as the dude states the wheel going under the crown wheel..
Maybe take a shot of how yours look like would help a bit..