Hi All

This problem popped up this afternoon. I took off my watch for a few minutes and when I put it back on the clasp no longer locks when I close it. Virtually no resistance if I close the clasp and it will open with just gravity. This wasn't a progressive case of the locking mechanism getting worse over time, it was like a switch was flipped or something broke - working perfectly then all sudden not working.

I have inspected it closely and can't see any defect, no broken nibs. Cleaned...

IWC Deployant Clasp Not Locking