okay i tried on the chanel watch this weekend and it's beautiful!! i love the diamond bezel one but dont think i can afford that now
the back and buckel of the watch is still stainless steel, but i think i can just put some kind of clear film over it.....
Why don't you go to an office supply store, they generally have PDA/Ipod covers that are like these thin, clear sheets of durable plastic. You could probably cut out a little circle and just stick it onto the back of your watch.