Roskopf Patent pocket watch, c 1887.

 
Roskopf Patent pocket watch, c 1887.
4 0 c m
 
33cm
actual image size: 25cm x 32cm

Description

Lever watch with pin-pallet escapement; dial, case and movement marked 'Roskopf Patent, Swis made'. The German watchmaker Georges-Frederic Roskopf (1813-1889) produced the first cheap watch in 1868, which won a bronze medal when it was exhibited at the Paris Universal Exhibition of 1868. Roskopf's design was ingenious. Most importantly, he simplified the escapement, replacing the cylinder of the time by a form of pin-pallet which was much cheaper to make. This later version is almost identical in appearance to the original model.

© Science Museum / Science & Society Picture Library

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