I have gone for the tritium-illuminated watches lately because they glow nicely. I had
this one for a while, then went to
this one to get a date I could read
Another vote for the Traser/H3 watches here.
I've got the titanium version of the one peter has got. It is lighter than the steel version, and also seems to be virtually indestructable, based on the number of times I've accidentally smacked it into things.