The £538,000 watch which contains a map of the cosmos

The Astronomia Sky is a £538,000 watch made by luxury watch brand Jacob & Co.

With only 18 being produced worldwide and costing more than half a million pounds, it's a very rare and expensive watch - so what makes it so special?

Jacob and Co watchmaker, Luca Soprana says: "The Astronomia is a very, very delicate piece. Every component needs to be perfectly balanced so we need to use very special materials - like titanium - that are very delicate. The idea is really to come with a watch that is three dimensional and the watch has to be spectacular."

"What really makes the piece special is really the technique. The complexity of how it works, and to have an equilibrium of all the components."

The face of the watch has a small star map, replicating the rotation of the celestial stars. It's an impressive looking watch, but at £538,000 it's ridiculously expensive. Would you buy one?

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