Well, not really. A rubber one-piece strap that goes under the watch like a two-ring NATO does (RAF-type). Watchbandcenter in Germany (http://www.watch-bands-straps-bracel...atchstrap.html) suddenly had it on its site. Ordered one in 20 mm.
I have NATOs for all my watches (all six that is), in various colours for the two sizes (18 and 20 mm in my case), and several other straps that can be swapped quickly without having to fiddle with spring pins. Including a brown leather NATO (and a black leather one on the way along with the newly found rubber one). Until now I never saw a rubber one-piece. In a few days I'll be able to shower with a watch without bothering about wringing out a nylon strap afterwards, and I'll still be able to swap it instantly for a Bond...
Just thought I'd let you guys know this exists.

:P