Awesome black 1016 HWA
I have a few Rolex type acrylics sitting around . . perhaps let us know the ID / OD and see if something will work for you?
Or, install a sapphire? With the nylon gaskets, it might just work? I have a ‘parabolic’ sapphire for acrylic type cases . . It’s domed on the underside and flat on top with a nice edge bevel. Some nice distortion effects, if you like that sort of thing, which I do!
just a couple of ideas.