Hey,
I need some help and advise;
The second central sweep hand on my Wakmann triple date frequently rubs against the minute hand. While trying to adjust it I realized that it sits without having a collet; meaning there is a hole in the hand and no little tubing collet attached to it. No wonder it tilts to the side from time to time.
The question is: did you ever see a central sweep seconds hand without this little collet attached to it?
If I realize that it was broken by the previous owner at one point, I will look for the 0.25 hole replacement hand.