I'm not really sure what use a 'pilot's watch' is these days.
I cannot concieve of any real-world situation when I am flying where I would break into a sweat and think 'Thank God I have the circular slide rule, chronographic, day, date, month facilities of the Breitling Navitimer strapped to my wrist...!'
To be honest, I've had to wait so long to afford my Breitling, with my fading eyesight at the grand old age of 50, I can't read the b****y thing anyway...