Patek Philippe Celestial uses superimposed layers of sapphire crystal disks.

Patek Philippe is well known for its sophisticated high-end astronomical watches.

This one provides information about the night sky by using a dial constructed from a series of superimposed layers of sapphire crystal disks which concentrically rotate and tell you information about the cosmos.

Using the Geneva sky as a reference, it will give you the time of meridian passage of the moon as well as Sirius, the position of the stars, a beautifully Milky Way rendered in gold.

Inside the Platinum and Rose Gold 43mm case is a mechanical self-winding movement Caliber 240 LU CL with a 48hr power reserve and 45 jewels.