English rare and heavy quarter repeating pocket watch Circa 1818

Gold open faced pocket watch by Brockbanks & Atkins
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An English rare and heavy quarter repeating gentleman’s pocket watch, circa 1818.
18 carat gold polished case with case maker punch mark “TH”, gold dome and pusher for repetition via pendant. Signed off-white enamel dial with radial Roman numerals and gold spade hands. Full plate movement, frosted, gilt, signed, with applied florally engraved gold ornaments, chain/fusee, verge escapement, three-arm steel balance, blued balance spring and chatoned diamond endstone on balance.
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Diameter: 57 mm
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Weight: 178 g
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Signed: Brockbanks & Atkins, London
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John Brockbanks
John Brockbanks was born in London in 1761. He and his brother Myles were members of the Clockmaker’s Company. Both were excellent chronometer makers. Thomas Earnshaw and Peto both worked for the Brockbanks brothers from time to time. Sometime between 1775 and 1815 John and Myles Brockbanks took Samuel Elliot Atkins into their company and began signing their watches “Brockbanks & Atkins”.