I own a number of water watches and this one from Casio is one of the best watches for the money you can own.  It is comperable to other dive watches that are up to 3 times the price including Pulsar and Luminox.  I use it surfing on a weekly basis and have found it easy to read in all conditions due to the illuminator dial, and handles rough wearing without a hitch.  Buy it, and you won't be sorry!