BARRAUD - 1817 English DUPLEX Pair Cased Antique Pocket Watch

Good British pocket watch with duplex escapement.
Watch is a solid piece, outer case is 56mm, inner case is 50mm.
London hallmarks dates it to 1817.

Dial and movement are signed by Paul Philip Barraud - one of the most renowned English chronometer makers.
Paul Philipp Barraud (1750-1820) was English chronometer maker in London. Baillie records him as "fine watch and chronometer maker" and mentions that in a partnership with George Jamieson and William Howells, he was making the Mudge timekeepers.
Barraud was part of watchmaking dynasty, origin from French Huguenot, refugees in England in 1680s.
In 1796 Barraud became a member of the Clockmakers’ Company of London and a master in 1810/11. Of Barraud’s 7 children, his sons Frederick Joseph, John and James followed him into the business.

Watch is equipped with centre seconds and duplex escapement.
In early XIX century duplex escapement was used in quality watches.
While precisely performed, it allows to achieve performance on par with lever escapement.

Condition
Watch appears to be in nice condition.
Movement is in good condition, works in every position, though time keeping is not guaranteed.
Dial is in good condition, case has some minor wear.
Original glass has small chip.