My daughter just had a smart watch, and wanted a support that can hold her 2 watches.

Printing

Print can be done using the stl with default orientation, you will need support only for the edge of the base (manual trees work well).

Printing on flat side, allows for nice pattern if you have the proper bed.

I used 0.2mm eight.

Notes

Fitting the connector in was “right” out of the box, but it is a tight fit and you may need just some small grinding on the small edge of the print to allow for rotation. I didn't put a chamfer on this place but it would be better to do so.
 

In the same spirit, after printing I thought that having a hole in the back in the model to pass the USB cable would have been better.

The freecad model is also there, so feel free to improve it.