Waterproof-ness and how the crown gasket works?

[Furrygoat]

I was just washing my new ish (bought used from a reputable seller, G serial, no service done) 116710 in a bowl of warm water, and noticed some bubbles coming very infrequently from all over the watch from the bracelet to the back, to the crown area. I figured that this was just air trapped to the surface of the metal since it was random, but I unscrewed the crown after I dried it all off, and it seemed like the crown gasket might've touched just a bit of water.

I took a piece of toilet paper and creased it and ran it against the crown tube/gasket, and I didn't get a sense of weather it picked up any moisture or not, but I'm thinking there was just a touch of water making it through, as the gasket was sort of shiny as opposed to a little linty/dust particle laden as usual. Is this supposed to happen and that's why there's a gasket on the crown tube, or is this an indicator of something that needs to be addressed?

Thanks in advance for any input.