Remove the bezel insert by heating/prying and pop out the old pearl from the back using a small jeweler's screwdriver. check size of hole against the watchmaterial pearl. Most likely, you'll need to widen it a bit. To do this, use either a jeweler's file or an exacto knife. Keep checking for a snug fit. Once it's in, add a dab of epoxy or gorilla glue to the back of the pearl to seal it in place.
You can use use a file or an emery board to smooth out rough edges, but the side of the SSD links are polished, so I would recommend leaving them alone.