would have to be re-done, even if you were to use an indipendent laboratory. It might cost less money (I'm sure) but using a non waterproof watch is a bit risky (even washing your hands)...You can always "bargain" with them. Tell them you're willing to pay USD. 120 lollllllllllllllllllllllll Maybe you want to consult some indipendent laboratory first. I'm sure you can find some in Google.