Report of a watch presented to the Academy of Science, Paris.
Short notice (page 355) in a complete issue of the magazineThe Mirror of Literature, Amusement and Instruction, No 979. November 30, 1839.
"Constructed principally of rock crystal...the escapement is of sapphire, the balance-wheel [sic] of rock crystal, and its springs are of gold." The first watch of its kind, predating those made by the American Waltham Watch Company.
Disbound from a complete volume, in good clean condition.
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