English watch of high-quality with rack lever escapement Circa 1827

Gold pair cased pocket watch by Robert Westmore & Son
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An English pair cased pocket watch of high-quality with rack lever escapement according to Peter Litherland, circa 1827.
Two cases: outer case – 18 Carat gold, polished, à goutte, with engraved monogram and hatchment and large lateral hinge; inner case – 18 Carat gold, polished, with case maker’s punch mark TA, ball-shaped pendant with pointed oval neck, and movement protection cap. Gold dial with floral engravings on engine-turned centre, applied radial Roman numerals, auxiliary seconds, and blued serpent hands. Fine full plate movement, keywind, frosted, gilt and signed, with chain/fusee, round pillars, Liverpool windows, gold three-arm ring balance, fine florally engraved balance cock, regulator tail according to Bosley with compensation curb, and chatoned diamond endstone on balance.
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Diameter: 56 mm
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Weight: 167 g
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Signed: Robert Westmore & Son
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Robert Westmore & Son worked in Preston, Lancashire from 1794 until 1825. There were several watchmakers by the name of Westmore in Lancashire who were very active; presumably, they were all related to each other. They are mentioned in Lancaster, Preston and Fazakerly from 1761 until 1827.