I was totally doubtful this would work but I figured for the low price it was worth a shot.  I have a couple of year old Swatch with a plastic bezel.  I ended up scratching it while carelessly using it around the how.  Some of the scratches were rather deep.  I had basically stored that watch away because of the scratches.  I decided to give this product a try.  Ok, all I did was use two cotton balls, one for applying and one for kind of buffing out the product.  I determined this procedure by looking this product up on the web and seeing how others have used it.  All it took was 5 minutes of pea sized amount on one cotton ball to apply in the same way one would apply wax on a car and then using the other cotton ball to remove it.  I then used a microfiber cloth to give it a shine.  Let me tell you, my Swatch looks like new.  It's as if the scratches were never there.

I hope this works for you as well.  It certainly worked for me and am very pleasantly surprised by this.  My only complaint is that it doesn't include instructions.