The clocks are examples of great artistic interest, bearing the signature of Francesco Manfredini and the title of King's Watchmaker: the clock of the Sabine women, the clock of the Muse Polimnia and the clock of Apollo and Diana - bearing Manfredini's signature on the dial - are all kept in the Royal Palace and date back to the first years of activity of the Eugenia Manufacture, founded in Milan in 1807 by the three Manfredini brothers at the behest of the Viceroy of Italy Eugenio de Beauharnais. In particular, the clock of the Sabines, whose name derives from the painting Le Sabine by Jacques-Louis David, which the Manfredinis must have admired during their stay in Paris. The watch dates back to 1807, the year in which Francesco Manfredini was appointed King's Watchmaker - the dial bears the signature "Manfredini Orolo.ro del Re a Milano".

The double attribution of the pendulum clock is justified by the existence of some similarities and affinities of style with the French-made watch models (in particular with those produced by Claude Galle and Pierre-Philippe Thomier). In fact, several examples of the same watch have been identified, all similar to each other, but signed by different craftsmen.
The Sabine clock, for example, has a twin example now displayed in the Green Drawing Room of Windsor Castle and also dating from around 1806. The two clocks have only a few differences in the lower frieze: in the Milanese version there is in fact no group of the four characters on the right (symmetrical to the left group), which instead is present in the English one.