I'm also considering a new design for the watch holders. The current design, which is a remix, works pretty well for watches with leather or cloth bands, but not as well for watches with metal bracelets. The new design is not yet laid out however, so it will be a while.
In the meantime (while I'm not printing this case), I was able to come up with a design for a more universally useful watch holder. The current design does not work well with watches that have bracelets, since there is very little adjustment (it works fine for watches with cloth or leather bands though). So I had this idea for a TPU holder, that could flex a bit and help hold watches where the band or bracelet is a set size. I need to test this, but I think it will look something like this (the one on the left in the 2nd pic):
Most of the watches shown are Seiko or Omega "homage" watches from AliExpress, and are really quite nice. The Seiko "Captain Willard" homage watch which is shown on a bracelet is from ADDIESDIVE, and sports a Seiko NH35 automatic movement. It runs about $85, which is not a bad deal for such a nice watch.
The cases have not yet been uploaded, those will take some more time (I have not yet printed the 4x version).