start with a TAG-Heuer superprofessional that had badly refinished - they BRUSH on a BEAD-BLASTED watch! and it is badly done, too! (hard to see in the pics). now i put tape at the watch to protect special parts.
same with the bracelet - you can see brushing a little better at this one.
now we have our blasting gun (not in picture: air-compressor). i did some testing on different media and air-pressures.
now my watch is much better - with original finish!
one final note...i do not do bead-blasting work on a commercial basis!