One more thing. I suspect the mechanism in your watch was made to be fitted into a
hunter case, one with a cover on both the front of the case, and the back. I think I see a mark on the flange on the inner lip of the case, around the movement, that indicates an alien case screw mark from a previous tenant. The colour of the case has a pink tone which is characteristic of a lot of English made cases.
Since you posted the pocketwatchdatabase info on your watch, it confirms that the movement is an 1888 model, made for a hunter case (not an open faced case). If I am correct about this being an English case (with an American movement), this was done to beat English import duties at the time.