Navitimer questions

[awdxtc]

I'm looking to buy my first breitling and I love the look of the navitimer. This would be my first high end watch. I have a gshock that i wear daily. I work in a hospital and things get knocked around in that environment lol. I see the water resistance is less than i expected. It would be nice to be able to swim with it but it's not a deal breaker. I had considered a rolex submariner or deep sea but those are just out of the budget particularly the deep sea.
My question is is it safe to shower with a navitimer? I imagine being caught in a heavy rain is a non issue but what about a shower?