I made it to fit a watch I had lying around but made the holder and presser swappable so if you want to make your own it should be pretty simple.

I needed it quick so printed it with bad settings (2 shells, 15% infill), ideally I'd print it with 4 or so shells. It worked for my battery replacement though. The bolt is printed in two halves for strength, so that the layer axis is not aligned with the rotational axis.