This is not a completely uncommon thing. I had a Speedmaster with the same issue a few years back - here is how the minute wheel fit on the "post" that some hack installed:
And the wonderful repair that hack did:
The part that was jammed into the hole was actually square, so who says you can't fit a square peg into a round hole?
And what a proper repair looks like:
Cheers, Al
Click to expand...