Cedric Jagger Collection A fine, rare London pocket chronometer with early screw compensation...

Gehäuse
Silver, smooth, case maker's punch mark "TG" (Thomas Grove).|Very good.

Zifferblatt
Enamel, off-white.|Good, hairlines.

Werk
4/5 plate movement, chain/fusee, spring detent escapement, bimetallic chronometer balance with 4 screws and 6 weights, freesprung blued helical balance spring with both sides passing terminal curves.|Very good, capable of running, cleaning recommended.

WERKNR:159

dimension:56 mm

circa:1814

weight:181

country:England

originalbox:

originalcertificate:

guaranteecard:

servicecard:

extract:

accessories:

clasp:

Robert Pennington was a renowned watchmaker who worked in London from about 1780 to his death in 1813. He is thought to have invented the screw balance - a very early version of which was used in the chronometer we have here. Pennington worked with William Howells and a number of other makers; between 1794 and 1799 the group produced at least 27 examples of Thomas Mudges's 'marine timekeepers' commissioned by Mudge’s son. Pennington also created the magnificent drawings of plates in "A Description with Plates" which Mudge Jr. published in 1799.This watch is illustrated and described in Cecil Clutton’s "The Collection of Cedric Jagger".