L\'ART DE L\'HORLOGERIE EN FRANCE DE ...

Geneva, Hotel Des Bergues, Nov 14, 1993

LOT 114

Robin, Horloger du Roi, No. 59, circa 1789. Very rare and important watch movement with an early lever escapement and a special temperature compensation invented in 1789.

CHF 10,000 - 12,000

Sold: CHF 10,925

D. White enamel with Roman numerals and subsidiary seconds ( hair lines). M. Gilt brass full plate with cylindrical pillars, fusee with chain, Emery type straight line lever escapement, plain steel three-arm balance, blued-steel helical balance spring, gilt brass balance bridge engraved with a formal decoration, garnet end-stone and very unusual temperature compensation set on the border of the back plate and acting through an arm upon the regulating index. Signed on the dial, back and dial plate. h1 good condition. Diam. 50 mm.


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Notes

This movement was made by Robert Robin based on his studies of the very early lever watches made by Josiah Emery, and imported from England in 1786. The lever escapement and the arrangement of the balance and the balance spring are very similar to that made by Emery. The temperature compensation, signed . Compensation inventée par Robin, Horloger aux Galeries in 1789, seems to be inspired by that invented by Alexander Cummin and described in his book : The Elements of Clock and Watchwork, 1766.