Hello, I just bought a JLC Master Compressor Memovox and I wonder about one thing regarding the alarm. If you have the alarm crown in position 2(where you set the alarm time)and close the compressor ring, is it water secured or is it just when the crown is in position 1. The reson why I ask is to be able to have the alarm "off" and still be ablbe to take a swim. //Tur