I personally bought [and wear full-time since purchasing] a G-Shock DW-6900MS-1 [the blacked out, 'standard' G-shock] after a watch repair friend suggested it as he told me "they're bomb-proof. A lot of paramedics, police, firefigthers, even some military guys wear them. Hell, you could drive over that thing with a HUMMVEE and it will keep working." Sold me on the durability right there - and I wear mine from pretty much the time I wake up to the time I go to bed - including in the shower, airsoft, swimming, working out, whatever. I work in security, as well as event security, so I wanted something I could smack around and not worry about. It's been covered in mud, bug-spray, sun-block [multiple layers that I can still see the residue in the smaller, more detailed areas in,] and yet, despite all of that, and the fact that I spent more than I needed/wanted because I HAD to have the blacked out version, :roll eyes: I've been very happy and rather impressed with the watch.
Also, just for kicks, I would say watch the testing on the G-Shock site to see what they put them through. With the exception of word of mouth from experianced users, this is what really sold me.
http://www.casio-intl.com/in/en/wat/...l/DW-6900MS-1/ [link to my same model]
TL;DR: get G-Shock; will not die after a bit of water gets on it, and will take more abuse than it should and keep working.