Swimming with the Apple Watch
Is there a possibility the dial will turn and unlock the water lock while I swim? ( I have a Apple Watch SE)
Apple Watch SE, watchOS 8
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I suppose that may be a remote possibility, but even if it happened there should be no adverse affects.
As explained in How to use Water Lock and eject water from your Apple Watch:
"When Water Lock is on, your Apple Watch Series 2 or later doesn't respond to touch on its display. This prevents accidental input while you're in water. When you turn off Water Lock, your watch ejects any water that remains in its speaker."
If it does happen, and you want to eject water from the speaker, just repeat the on/off sequence.