Fine English heavy silver pair cased chronometer Circa 1816

Silver pocket chronometer 
–
A very fine and heavy English silver pair cased pocket chronometer made by James McCabe, Hallmarked London 1816. Chronometer movement in the manner of Earnshaw, a spring detent escapement, Z balance with trapezoidal weights, helical hairspring, diamond endstone and screwed gold chatons. White enamel dial with Roman hours, outer minute divisions, subsidiary seconds at 6 o’clock and rose gold hands.The plain case with master’s mark JM. Dial and movement signed and numbered.
–
Diameter: 62.5 mm
–
Weight: 197 g
–
Signed: Jas McCabe Royal Exchange London
–
James McCabe mainly made pocket watches for which he used various different escapements, but finally, he specialized in duplex escapements. He separated his pocket watches and chronometers into three quality and price categories. To distinguish them, he used different signatures:
1. James McCabe for the highest quality watches;
2. McCabe for the medium quality watches;
3. Beatson for watches of daily use.
McCabe was appointed to the Clockmakers’ Company on April 2nd, 1781, together with 37 others, including Emery, Frodsham, Pinchbeck and Vulliamy. From April 1787, he was a full member of the guild. He became a Junior Warden in January 1809 and two years later, in July 1811, a Senior Warden.