The incredible, centuries-long history of Jaquet Droz includes the Pocket Watch, designed in 1785 and now relaunched with an ivory Grand Feu enamelled dial and a yellow gold case. The basic design is pure Jaquet Droz, with the Grande Seconde pattern that helps set their watches apart from other brands. The reference (J080031000) has a case in 18-carat yellow gold with chain, housing a hand-wound mechanical movement (Jaquet Droz 2615) providing 40 hours power reserve. On the back of the 50 millimetre case, the Jaquet Droz signature and the serial number are engraved, together with a clover-leaf guilloché pattern. The latter is the Jaquet Droz secret signature designed to discourage fake copies. The same system was commissioned by Abraham-Louis Breguet from Jaquet Droz, for the same purpose.
In the photo below, the development of the Grande Seconde pocket watch over the centuries, including the wristwatch that has become the brand's iconic piece.