Geo GRAHAM, London. No 5724

97240

£ 595.00

Rare early cylinder movement by the inventor, circa 1736-7

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Fullplate fusee movement of typical Graham caliper, with beautifully engraved cock and slide plate, the cock with cherub's head mask and un-pierced foot. Cylinder (dead-beat) escapement retaining the original 13-tooth brass escape and banking. Steel balance, blued-steel balance-spring. Later enamel dial fitted to the original brass-edge. 36.5 mm diameter.

George Graham, successor to Thomas Tompion, Fleet Street, London, had perfected the cylinder escapement by 1726 and used this in all his watches from then on, without exception (verge no 5999 is almost certainly a fake), until he died in 1751. The earliest known surviving example is number 5182 (also now just a movement). Formerly in the Eggersdorf collection, Dublin, and not previously recorded, but see also the indispensable books on Tompion's and Graham's output by Jeremy Evans for more information.


NB. Graham, justly recognised as one of the greatest clock and watchmakers, introduced his new dead-beat escapement for clocks around 1715 and for his watches in 1726. The clock version is still extensively used and the watch form was used by Swiss and French makers well into the 20th century, making this one of the most historically important escapements to have been invented. 


Lacking cap and hands, and the later dial with the usual hair cracks. Otherwise complete with original motion work and the cock thankfully not having been permanently disfigured by being filed down to provide a later form of banking - many have. Fusee chain detached and lacking its barrel hook but will tick if pressure is applied to the train. Sold as not working.


Reserved

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