I know very little about watches, but I have a 1966 IWC model 602AD which I have owned and used since it was new. It has developed a habit of stopping occasionally, evidently because the second hand is coming into contact with the minute hand. I live a very long way from the nearest IWC service centre.
I am aware of the advice that is often given: don't let anyone except an authorized centre open the case. But does "opening the case" include removing the glass? Could I safely ask a reputable watchmaker to do this? Is it foolish to hope that the problem could be solved by slightly bending the second hand?
I don't know whether it's relevant, but the watch was overhauled by IWC in Schaffhausen ten years ago, and one of the things they did was to replace the face. The reason was that the original face was blemished by what was described as "oxidization". They asked for my agreement before replacing it, and I am happy with it; but it isn't the same as the original, which was quite flat - the new one has a circular "ridge" which changes the appearance significantly.
I have sometimes wondered whether the new face could have affected the alignment of the hands.