Is the actual casing waterproof? i.e. if...
Is the actual casing waterproof? i.e. if i were to change the leather band to a polyurethane band would i be able to go swimming/surfing with it on?
Case is good for kiddie pool splish-splashing down to 100 meters, for sure. But if you're already planning on swapping out the band for a PU, why not just swoop the PU Sentry instead? Save yourself some coin and the inevitable pain in the assery!
PU version here: http://www.dogfunk.com/nixon-sentry-watch-mens