I really like this watch tells great time & has a date window to display the date but the watch will quit running if you don't wear it for over 24 hours & with my experience it must be worn a minimum of 4 -12 hours per day to keep from stopping at a random time also I haven't had luck with it being a  Perpetual Calendar it failed to move to the correct date in Feb & is failing again today on 4/30/18 to change to the 1st rather than 31st