

There was a not very good TV show Seven Days that used this well. They had a time machine that could go back in time seven days. The pilot had to fly the machine chasing the earth as he traveled back in time.
He would usually end up crashing it somewhere and have to find a phone to call for pickup.
Yeah you didn’t have a risk of pressure popping the seal and flooding the electronics. Also if there was a leak in the box you knew about it before you put it in the water.