This year, Jaquet Droz adds a new chapter to the Grande Seconde story. The movement inside this legendary model takes a leap forward with the incorporation of a silicon balance spring and a pallet lever with inverted horns. Exceptionally supple and equally hard to master, silicon is insensitive to shocks, magnetic fields, and changes in temperature and pressure, with the added benefit of being perfectly stable over time. http://forums.watchuseek.com/f381/jaquet-droz-grande-seconde-quanti%E8me-ivory-enamel-1076595.html

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