PAM 392 date change problem(?) -p.9000 movement

[ec00421]

Sold my old PAMs and recently moved on to 392.

I've noticed that at around 11pm, the date dial starts to move and hovers between todays date and tomorrows date . i.e. (today is the 1st, so the date dial is in the position between 1 and 2)

Is this normal for p.9000 movement?

so its like:



any ideas?