Garmin Instinct 2X Solar waterproff

Hello, I have a question about the waterproofness of the Instinct 2X Solar watch. I was about 30 cm below the surface and it happened that my daughter accidentally grabbed my watch while swimming and I don't know if he pressed a button in the 30 cm below the surface, I'm afraid that it won't damage the watch when it is written in the instructions not to press the buttons under water, how is it solved the membrane or if they can do it or if it will damage them I couldn't find any more detailed information anywhere thanks for the answer