Hi I have a Mdl 1883 Waltham 17J in this case, but the case itself is unmarked, as to a maker, aside from saying silveroid on it. It has screw off front and rear, but the removable bezel and case back, come from more in the center of the case, rather than just the outside bezels that are common. Hope you can see what I mean with the pics.
Thanks,
Bill

case

case 2