Could be the angle, could be.
Weird thing is that some markers align good. Some absolutely don't. That makes me doubt slanglican's option would work.
Ask for additional pictures. If not better, reject the watch.
Slanglican
Indeed, 11-25 way worse that the other numbers.
Very peculiar that you were able to fix it this way and with excellent result.
(Did you mean by tightening the case, with the case/movement clamps?)