I have a Series 3 Ceramic AW. I've noticed a strange phenomenon. After a swim, I turn the Digital Crown and the Water Lock goes off, but I need to go into the Control Panel and turn off the Silent Mode. I'm sure that I haven't enabled the Silent Mode when I turned the Water Lock on. I realize that it would be easy to do this since the Silent Mode indicator is right above the Water Lock on the Control Panel, but I'm careful about not doing this. I can turn the Water Lock on and off at times other than swimming and the Silent Mode is unaffected.