Hi Jwilensky,
Basically the instruction manual - in particularly the leaflet in red you see below - warns you ((I think that what is says - its been a while since I read it)
[b]a) not to do that, meaning move the time back across midnight;
b) that time keeping on the perpetual calendar only moves forward, and never backwards (though based on earlier discussions I believe the exception is that you can move time back with restriction: which is never to move time back when you are already within, or if it will cause you to be within, the date-change time period of 8 pm to 2 am)[/b]
Can u share what the issue with your 5022 is ? In any case, if it is not functioning properly, I think the best response is to send it to the IWC service center to get it set correctly.
The IWC perpetual calendar controlled by a single crown, with no "quick set" for the date, or "quick adjust" by another name, must be handled very carefully, given its very ingenious and fine engineering.

