I was disassembling a Hamilton 667. I had removed the auto winding assembly, and attempted to disengage the click while holding the crown and nothing would move.
I attached a heavy flat sided pin vise to the crown to prevent a wild run out and then removed the pallet, still nothing
When I loosened the screws up f the gear train bridge it finally un wound through the train. I grabbed the pin vise in time to keep it from over speeding. Thankfully it was not fully wound.
I know I missed something but did not see it in the inspection of the disassembly.
Any ideas? All theories including those involving a conspiracy of the CIA and Martians are welcome.