A glass celestial globe containing a geared tellurium, consisting of the Sun, Mercury, Venus and Earth, mounted on a decorative base, which once contained the clockwork mechanism. At the south pole of the Earth, there is an enamel hour dial [labelled, 1-12, 1-12] with a single hand, would also have been driven by the geared wheels and clockwork mechanism.

Astronomical details on the sphere include stars engraved in the glass, which are connected by dotted lines and represented by different colours, although there is no explanatory table. The brass ecliptic band - which is engraved with degrees, the signs of the zodiac and French names of the months - is not properly aligned with the stars and the sign of Aries on the glass globe coincides with the month of December, instead of March, on the band. A total of five constellations are labelled but not drawn. Geographical details include the Earth inside the sphere and the outlines of the lands and sea are drawn. Paris is the only location labelled.

For full details about the cartography and construction of this model please refer to the related publication, Globes at Greenwich.