I wear my watch on my left hand, but wank with my right.
Back to the OP, other end of the spectrum of watches. I made the mistake to wear my watch in a Jacuzzi (or rather just forgot to take it off), where water got inside and it stopped working.
Then I made another mistake (that was on my second ? holiday to Thailand, now I am wiser) to buy a new watch at Patpong night market for 250 Baht (reduced from 400 ?, they sell for 100 elsewhere), and that watch started disintegrating days later, while I was still in Thailand. You can't even change the battery because the watch's lifetime is shorter than the battery's.