RM 50

Chronograph watches can measure and display elapsed time. Usually three subcounters on the dial display the elapsed seconds, minutes and hours.

The Flyblack function means that the chronograph hand can be reset to zero and immediately started again by pressing once the pusher. That’s why there are two hands for the chronograph.

The power reserve indicator tells you the time the watch will continue to function. It can either be seen on hand winding or automatic watches.

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.