The sealing level will depend on your watch. It is indicated on the back of the latter.- 3 ATM: splash-proof. The watch will resist accidental contact with water (splashing, rain, housework, etc.) and dust.- 5 ATM: bathing on the surface. We do not advise you to swim with your watch.- 10 ATM: You can swim and dive with your watch.- 30 ATM: You can make scuba diving with your watch.CAUTION: Always check that the crown of your watch is properly depressed before bathing.Many the sealing level of your watch, we advise you to remove it in the shower.Our leather bracelets are not going in the water, opt for our steel or nylon bracelets if you want to swim with.For more info, refer to the instruction manual.