I still can't part with my Casio watch, bought in 1996. In the 22 years I've owned it, only once did I have to change the battery.
Here it is:
It tells you the day, month, year, the exact time and lets you store 150 phone numbers, has a schedule, calculator, world time clock, alarm, timer and stopwatch. Why would I want to part with that? The way it still works, it might outlive my sorry ass.
I have another watch, a Diesel. It was a birthday present from my mother but it's too large for my taste. Perhaps I should try and sell it.
I don't know why I still wear a watch. Maybe because it's still more practical than pulling out the mobile phone all the time. Or maybe there's some elegance to it?