Once upon a time in the 80's, my mom bought me my first waterproof watch and i wore it day and night without taking it off. And the best thing? Find a reason to wash your hand then u purposely runs the water onto the watch and in your head you're thinking... ahh thats my watch we're talking. Secondly, bath with it and constantly took at glance at it to check "Is this really waterproof? Yes it is!". That's the fav thing about the IP55/58 Z2. Lastly, what's fav about dbrand? Craftmanships and 3M! Thank you very much.