I actually use q-tips and nail polish remover. You have to be very careful though, I've used this on both matte and glossy finish watches. The biggest thing to be careful about, it to stay away from the indented areas on the bezel where it says 'g-shock' and 'adjust' because if you put the nail polish remover on those parts, whatever color of ink used to make those words, can easily seep out onto the rest of the watch and cause a complete mess. That happened once with me.