Aligns with a previous post above:
Wanted to give you an update on the whole situation ...Took my watch to the AD, they sent it to Texas..Texas didn't find any issues, but clarified, that while wounding the watch, after reaching the 7 day mark, one has to additionally make 8 full rotations of the crown, and only then the whole 7 days reserve is fully charged.
It appears to be working. Interestingly, no mention of the procedure anywhere in the manual, or (per AD) in the training the IWC conducts for the ADs.