Vintage & Waterproof

janice&fred

No one seems wrong in their opinions so far and of course from a purely technical standpoint a properly restored vintage watch should be able to endure moisture up to it's original ratings, but this is a hobby involving passion so from that standpoint it involves a bit of emotion and personal preference, and of course some sensibilities as to how much these vintage watches are now worth and whether "using them as they were intended" still makes sense.
A vintage 427 cobra should be able to run the 1/4 mile drag strip in X amount of time, but should a properly serviced example have it's clutch side-stepped on the starting line with the gas pedal matted to the floor and power-shifted down the track merely because the original specs were published by Shelby? Is there a need to do that?

janice&fred

I believe I covered that in my "personal preference" point, however both yours and my automotive examples are outliers, as many owners of expensive and exotic vintage watches and cars would be squeamish to put them to the test. There's just too much risk.