this watch keeps awesome time but when you set the calendar you have to set the day of the week first due to it only changes by advancing the hour & minute hands 24 hours until the correct weekday is displayed then you have to set the correct AM or PM for the date function to work properly & the other thing is the instructions say not to set the calendar during the hours of 10:00pm & 2am because it is advancing during those hours but it really should say 9:30pm & 3:15am because the day of the week doesn't fully finish till 3:15am