Really like the Speedmaster, but what about water resistance?

[ProfEd]

Hi all,
I have really taken a liking to the Omega's even though I am a Rolex kind of guy.

The Omega Speedmaster really is a nice piece as far as looks (though I have never actually tried one on). I am looking into getting one, but I often spend time in the water (or with my hand in my coral reef aquarium).

My question is this: I have read that the Speedmaster has a depth rating of 30m/100ft, is that rating meant for me to actually swim with it? (I have checked out the chart in the sticky) What about submersing it for only a few seconds at a time in a saltwater fish tank? I can't be bothered with taking my watch on and off every time I need to stick my hand in my tank (which is often).

I just wanted some insight from those of you who have either used in such an environment, or those of you who have worked on them and understand their real world ratings.

Thanks much!
Ed