I don't think there's any stitching.
On Horsepower TV they put new leather in a Mustang. You have to remove the seats (naturally) and the actual skins are just clipped on, zippered in other areas, and sometimes stapled (all underneath) The foam underneath needs to be treated gingerly, and some may come off as the leather is glued to it.
With plenty of paitence, kneeding & some work the old skins come off. It's just reverse for the new ones.
I didn't see any Contour seats, I wonder if the Mystique seat is the same...