Not actually wearing it...yet. I'm seriously considering leaving this crystal on it, but I did order one just in case. This is called a type O, 1968. The same year OF's official pilot, Mad Dog started drinking DD coffee.
I think this ad shows a 1967 watch, which is nearly identical. Note the sweep hand is not luminous.
Love the excellent shots of the crescent moon. It looks HUGE in the 2nd. Mine never come out the way I want...like when you try to capture the enormity of the Grand Canyon with a photo.