F.P. Journe

FP Journe User Manual says, "If the watch has been running for more than 56 hours, it is essential to continue winding until is it fully locked, even if the power reserve indicator is positioned at 0 on the graduated scale." My sincere apology if this see... 

Once the power reserve indicator reaches zero you will still be able to turn the crown another revolution or two until you feel tension signaling the point where you can't turn any further. I would suggest you go very slowly at that point paying close att... 

... and even if i don't wind it up fully, i assume i won't damage the movement(?).

But the power reserve mechanism will not be as accurate. The additional winding to "fully locked" is sort of like resetting the gauge to proper zero.

at peace and resting easy now ...