Matter of curiosity, but can it withstand the three following tests:
being dropped a distance of at least 6 feet onto solid rock, bouncing off, and hitting solid rock again 3 times at the same distance (ie when a researcher is climbing a rocky slope and drops his by accident)
being driven over by a fully loaded humvee (eg by accident on the African savanna).
being dropped into severely polluted water (eg by some ham handed research assistant taking samples in China)
I'm not talking about deliberate abuse with guns and sledgehammers, but the kind of damage that nerds and absent minded professors in the field are likely to inflict.