[Paddlewise] Q: Waterproof Binoculars

I am looking for binocs that can ride on deck, secured under
a bungee cord, and survive fresh water waves and the occasional
submersion due to rolling - without fogging and/or permanent
damage to optics. 

Does anyone have a recommendation for waterproof binoculars?

I realize that "waterproof" is a rather nebulously defined
 when discussing radios and I anticipate the same
when discussing optics. I have read that "nitrogen purged"
binocs with "o-rings" are waterproof. Anyone have experience
with such binocs?

-chris

On a related note: Is there life (being able to tolerate lesser
binocs) after using Swarovski's?
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