It's an old concern regarding the A7750 although I don't know if it exists in other automatic movements (nor would I want to try it on my reps.
![Smile :) :)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
). The movement engages the date wheel around 10PM and does not let go until around after 2AM. To change the date using the quickset function on the crown at this critical period may damage the date-change mechanism. So the recommended position to do that is as far away from the 10 - 2 arc, which is in the 6 position. I do this and set the date one day before the actual date and then move to the quickset hour and then adjust the time until the date changes and I am at the correct time.