You may recall seeing my post upon my new (to me) Duometre Chronograph arriving last Wednesday. I wound the watch Wednesday and Thursday without issue. It gained 1/2 seconds over that 24 hour period. When I wound the watch Friday, I heard a concerning noise, which I suspect was the main spring on the time-telling side unwinding. The power reserve immediately snapped to 0 on that side. When I looked at the back, the screw on the "hours/minutes" barrel came off somehow and is in the movement. So in for service it goes. I did get a taste of love and look very much forward to its return! Hoping for the best here.