Synchronising digital clock time (RDS based) with analog clock?

To do this you normally tune to a RDS radiostation and press the two buttons under the analog watch - radio says synchronizing time etc.

My problem is that the radio time (digital watch) shows correct time after synch. (for ex. 05.33) - but the analog watch is adjusting himself to complete wrong time - (f.ex. 10.13). Have anyone any solution for this ??

Thanks Per - owner of 96' 900 SE Turbo conv.