Just completed my first ETA 7750 service. All went well, but I can never seem to install the chrono hands correctly. I reset the chrono mechanism and do my best to install the hands pointing right on the number 12. Invariably, when I run the chrono and then reset, the second hand flies back to the 2 or 3 second mark :(   Is there a technique that I'm missing, or am I just a bit clumsy??   Stu...