Waltham anti-magnetic in pioneer case

[Jet]

Hey guys, I was able to acquire a couple pocket watches for almost no money and I’m having trouble finding much information at all on this one,

It looks like a typical 18s Waltham Grade 1 7j movement but is held in a curious case. It’s an 1885 patented pioneer swing out “antimagnetic shield” case. Does anyone know anything about these or could perhaps point me in the direction of someone who does? It’s a really cool watch even if no one can, here are the photos! Thanks for looking everyone!