While the Promaster Diver and other diver watches can withstand hot water temperatures for a short period of time, we recommend using caution. Depending on the water temperature, it is recommended that the watch be removed for these types of activities, such as wearing it in a hot tub. For example, heating the watch to elevated temperatures can also lead to increased failure and expand the water seals.
As an advanced timepiece made from high quality materials, the watch will perform at its best and for a longer period of ownership with good care and maintenance.