The watch is only listed as water resistant, not waterproof. I don't know if he's said anything specific about the Time 2, but for the 2 Duo (same target water resistance rating) he's written about the water resistance here: https://ericmigi.com/blog/pebble-2-duo-is-in-mass-production . He says you shouldn't take the watch swimming, shouldn't expose it to hot water like a shower (weakens the glue and eliminates the water resistance), and shouldn't expose it to high pressure water. They seem designed mainly to protect against incidental splashes rather than any serious water exposure.