Bought this watch from amazon and the first time I went swimming with it on it quit working, thought it was the battery but the watch was destroyed.  They said it was good underwater.  Got a second watch and it also did the same thing so I got rid of it also and got the armitron http://www.amazon.com/gp/product/B006ZTJEOI/ref=cm_cr_ryp_prd_ttl_sol_11 and it is a great watch with no problems.  Will never get another timex.