Swiss Movement Sinn Replica For Sale - Buy Online Replica Watch
To understand the problem, let's look at a split second chronograph. The split second bridge is located on the top of the movement and features the split seconds wheel, as well as the split seconds brake mechanisms that look like two pincers. The split seconds button triggers a columnwheel or, in the case Sinn Replica, a switchcam to cause the pincers on the wheel to clamp down. This causes the split second wheel and split second hand to abruptly stop.(Swiss Replica Watches)
All right, that all makes sense. How do you get the chronograph to run faster than the split second hand? This is the moment when magic happens. Normaly, the split second hand will lock in place along with the second chronograph hand. The split wheel has a return mechanism that is fixed. This is then engaged by a heart-shaped cam on the chronograph wheel. When the split-second wheel stops, the lever will continue to move around the edge the heart cam as it is equipped with a jewelled roller. A spring bar is used to tension the return lever. When the split wheel is released, the spring-loaded return lever will instantly jump back to the lowest resistance point against the heart cam that matches up with the running hands.
It is very difficult to get the tension of the return lever right.Patek Philippe Replica Watches You can get too much tension, and the movement will drag. This may cause the watch to lose time or stop altogether if the torque of the barrel is not enough to overcome the spring tension. Too little tension and the hands will not snap back together.
Habring found two solutions to this problem. He changed the solid spring bar to a smaller, coiled one, similar to the kind you'd find in a pen. Just a lot smaller. The return lever was able to be flexed more easily. Second, he built the split-second mechanism on top the most bulletproof tractor movement ever made: the Valjoux. Click here to read more about the Valjoux 7750 and how it saved the watch industry.