Deranton was watchmaker in Nancy before he settled in Paris in 1770. He was presumably the pupil of Arnould in Nancy, reputed to be the inventor of the cylinder escapement with 26 teeth escape wheel set on the back plate, protected by a cock. This escapement is fairly rare, the few examples known to exist were made by Arnould or by Ls. François in Metz, who according to the proximity of the two towns, could have been another pupil of Arnould. In the latter half of the XVIIIth century there was no developed tradition for copying Renaissance and Gothic styles. This came front about 1830 onward, first in Vienna during the "Gothik" revival and later in Germany with the production of watches, the movement made with elements coming front XVIIIth century watches by the firm of Keks und Schwartz in Munich and sold as souvenirs to enthusiastic collectors. Most of these watches were very decorative but of poor quality, most of them were not even working. The watch now offered for sale was certainly produced by Deranton upon a special request, for it was made with a very good quality movement incorporating an expensive escapement, used by very few makers only.