What kind of service problem is this?

[flintsghost]

If a automatic watch has a calendar that goes halfway during a change and stops.
It then doesn't go the rest of the way. On my own watch which I sent back on warranty is still at the dealer. I could get it to set properly if I turned the quick set just a hair, it would pop in correctly. Then the next day it did it again. The picture is a watch that is currently for sale by someone else. But I noticed the calendar is stopped between days. This is a different brand than my own watch but I do own a watch of this brand and I know it is not supposed to do this. My own watch has been gone a few weeks and is being fixed on warranty, but I wonder what it costs to fix this and whether a complete service is necessary. Does anyone know?