Good evening yuvalsegev1611,
The watch will take what ever you throw its way with no problem it is a Master's of G time piece after all. The problem you'll have with it lies more with bacterial growth underneath the bezel and on the underside of your band.
I would recommend removing the bezel from the watch and soaking it and nice warm soapy water with some white vinegar to disinfect the BnB and the watch itself.
Once you do this let it air dry completely and then assemble the watch once again. Organic substances tend to break down over time and leave residual bacteria which can get you really sick; so as long as you clean it every now and then you should be ok. Also, with time that organic material will break down the band and bezel, another reason to sanitize the BnB with some scheduled regularity.
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