MY FRIEND has a form of dementia and could no longer read the hands of a watch in order to tell time.  I purchase him a watch with bold numbers but soon realized the second hand was confusing to him.  I found this Casio on Amazon.com that is inexpensive in case he loses or breaks it and the watch has a 10 year battery.  I took it to him and he can read the LED time as well as the month and day without getting confused.  Great buy.