So, the first 3 or 4 days the watch was so accurate I couldn't see an error of a second.
She was set up with +15sec. as she has no hack second.
End of the week (between Thursday and Friday), after a night wearing it unstead laying it on the night table she lost the 15 sec.
Today she's at -15sec.
But that's not the worst, 30 sec in a week is still good.
No, today, as it is the start of a new month I wanted to set it.
On the first position, wich is for winding, you can rotate and rotate and rotate, the spring seems never coming to its end. But you hear something happens when turning.
On the second position, no way for turning the hands and setting the time.

I think I have to return it to the factory. Starts bad.