My watch is wet
Read the specification for your device carefully. Devices with ip67 protection class are not allowed be placed in water for more than a minute and/or to a depth of more than 1m. Devices with ip68 protection class are allowed to operate for no more than 30min at a depth of 1.5m. Anyway, deep-sea diving or prolonged stay in the water is not allowed.
Remember to take off your watch before taking a hot bath or shower, even if the watch is IP67 or IP68 rated, as prolonged exposure to hot water may damage the device.