JKay: This is my beater watch, I use it for sports, swimming, scuba diving, etc etc. I brushed it because there was a deep chip on the side with the helium valve due to a rock while scuba diving, and now it's gone!
For your information, It lost 3mm! it's now 14.xmm according to my caliper.
and come on, don't insult my 'customisation', I would have sanded the caseback down to produce a horrendous monstrosity if I hadn't found this method