Rich watch people can be spendy because it's fashion and, for mechanical watches, the idea of timeless functionality at the highest levels of craftsmanship.
This is exceptionally cool to me. But it's not something you get to subtly show off in public, it's going to (hopefully) involve a cheap watch, and therefore the "timeless functionality" appeal is gone.
Make a couple of them using Rolexes in a cube shape, and somebody would pay lots to have them as "fuzzy dice" to hang from the rear view mirror of their high end car.
But seriously, it doesn't have to be displayed with subtlety. Somebody offer OP $10K for this so you can use it as a paperweight on your desk.
