and sadly it does not exist. I want a simple chronograph with s specific function, the only thing I've ever used a chronograph for: ranging lightning. I don't even need a minute or hour counter, just the second hand and a bezel callibrated to the speed of sound. That way I can start it when I see the lightning, stop it when I head the thunder, and figure out how far away the storm is. I even propose a name "Thunderchief", from a old US fighter jet.
So brands, step up, I offer my idea at the low, low, down-to-earth price of giving me one for free 
A