My 5 yr old kid is learning to tell time at school.  I got this for his 5th Birthday & while he plays with it too much to wear to school (gets taken away as a distraction), it's pretty cool.

I like that it's analog & not digital so he can learn to tell time on any type of clock, he likes that he can swap the pieces around & show it off to his friends.

It seems flimsy at first, but it's held up well to a little boy's abuse.