Loading offers from trustable partners...
The tourbillon system was made to compensate the Earth’s gravitational force by mounting the escapement in a revolving cage. It gives the watch a better accuracy. This complication is known as one of the most difficult to make.
Watches featuring a retrograde hours have their hands moving across a scale which at the end of their cycle, return immediately to zero to start again.
Watches featuring a retrograde minutes have their hands moving across a scale which at the end of their cycle, return immediately to zero to start again.