The day and date is messed up on my presidential.

[zoso]

Hello. I hadn't worn my day/date for a few days and when I went to put it on it was stopped. I did my normal routine of moving the time forward towards the right time while watching the day and date change while paying attention to am and pm. Well i set it and the date ended up moving ahead at midnight but not the day. I tried to move the date back a day and now it's totally wrong. The day is right but the date is 3 days ahead. I'm not sure if I totally screwed it up or what. It's an older model and you can't adjust the day and date separately. Any help would be great. Thanks, Owen