Miyota 8205

I’m struggling to find a dial with both day date and a case for this Miyota 8205.

You’re saying the available models don’t meet your needs?

I’ve not seen a ton of mods available for Miyota. If you’re not married to that, you should find a bazillion cases and dials for the NH series. I don’t recall if DIY has that specific configuration, but a lot of other sites do.