Is this case from back in the day, or is it a newer reproduction? The wire "chain" and plastic toy train is clearly not antique.

Snap on bezel and hinged back.

Gun-metal caseback and copper highlights.

I've searched for the name of Central Case Co, but have not found anything. The pendant behaves as one would expect.

I suspect it's a new reproduction all around. Opinions?

The crystal type combined with quality of workmanship suggests about halfway "back in the day", sometime around 1900-1925.

I also took a look for the Central Case Co, and Central Watch Case Co. From what I have found it looks like a lot of Omega watches are found in them.

Looks like someone took a rattle can to it.. Krylon maybe?