when i was working i had a 24 hour watch..a real one,the hour hand went around the face once in 24 hours and not the kind where 4 was also marked 1600..all the paper work we did,and there was a constant stream of it,was marked in 24 hour time..for canoe tripping i have a cheap military repo that i hang off a shirt button hole because i don't like stuff on my wrist and i keep a second watch without a band in a waterproof case along with back-up glasses in my pack.