For all the anecdotal evidence and advertising, PenPusher, the only one that counts is whether the manufacturer will refund you for any damage that comes from the weather.
And they won't. Like all the other manufacturers, the warranty paragraph in the box you bought your camera in says no water or dirt ingress is covered. To any extent.
So, sure, stand under a waterfall or drop it into quicksand, but it'll be at your cost if it doesn't work afterwards, not Ricoh's.
There are objective standards and tests for what you're talking about, and the camera companies refuse to certify, even on their pro models. Interestingly, some of the phone manufacturers do.