Hello Tufina, it seems that the left number in the day window has come out of place and is not moving. I know the Marco Polo days go up to 39, but when I looked to forward the day to the first, I saw the left window number was dislodged. I also noticed since I had the watch, it seemed a little resistant to wind. I don't wear it everyday, so I would give it 30 winds to keep it running so the date features wouldn't have to be reset. I hope it's something easy to repair. 