All our watches are pressure tested in water at 200m so we know they’re water tight and the chances of your watch leaking are very small indeed. There is always a little moisture trapped within the air inside a watch which can naturally condense if the watch goes through a thermal shock – eg in hot sun then into cold water.  Any condensation should naturally dissipate over the course of a few days depending on the environment the watch is in. We recommend somewhere warm and dry.
If any condensation doesn't dissipate after a few days, we can always check it over for you.