It's name is Midnight Planétarium and besides showing the time it accurately displays the movement of 5 planets in our solar system as they orbit the Sun, that are visible from the Earth and the Earth itself.
Each planet is represented by a precious or semiprecious stone:
-Serpentine for Mercury
-Chloromelanite for Venus
-Turquoise for Earth
-Red jasper for Mars
-Blue agate for Jupiter
-Sugilite for Saturn.
According to the creators, the two other planets left were excluded because the lengths of their orbits would make their movements on the watch imperceptible and impractical - Uranus orbits the sun in 84 Earth years and Neptune makes the trip in 164.
The watch is conformed of 396 pieces and it needed 3 years of work.
The price: US$245,000
The watch was made by the Van Cleef & Arpels Jewelry and perfume company in partnership with Dutch watchmaker Christiaan van der Klaauw, who has been creating watches and clocks since the 1970s.
Enjoy it working: