Over 40 years of flying and never needed anything but a cheap ordinary watch. Aircraft normally has a stopwatch if I need it, and I use a very old Jeppesen rotary version of the E2B which fits in my shirt pocket and can be operated with one hand if I need it in flight. I find it much better to keep my brain alive by the simplified use of good old fashioned mental arithmetic. I like a good alarm clock though as at my age it's a bit difficult getting up in the morning soemtimes
