This is, probably, the most complicated clock in the world. Better: the clock and the watch, together.

In 1835 Abraham-Louis Breguet introduced to his son probably his most fascinating, complicated and hard to implement invention: the “pendule sympathique”. A precision pendulum clock that could mechanically wind and set the correct time on a pocket watch, when placed into a dedicated seat on the clock.

This Pendule Simpathique was made for the Duc d’Orléans. The pendulum clock features a quarter striking and the Sympathique mechanism with three control wires rising above to the watch holder; the richly decorated case is veneered overall with red tortoiseshell. The watch features an half-quarter repeating on a single gong, and has a silvered dial signed Breguet.