I bought this thing for the slide rule bevil.  You know, for figuring distances to a target.
Trouble is, when I bought it I could see it.  Well, I could see it with my cheaters on.  Now I can't get the batteries changed, which ain't nuthin to gripe about considering I live in the boonies, and I can't see the bevil with two pairs of cheaters and the bottom of a broke out coke bottle.
I can always blow a smoke screen and say I got the watch for figuing distance for shooting a rifle, but I've had to go to the real big Slide Rule instead.
All seriousness aside...excellent watch!  It gets my mark.