Large Belgian silver-cased quarter repeating coach watch Circa 1790

Silver open faced verge coach watch 
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A Large Belgian, silver-cased quarter striking and repeating coach watch with an alarm, circa 1790. Accompanied by a key and custom-made travel case. A polished and engraved case with stylised foliate decoration, aperture for the repeat cord below 6. White enamel dial, Arabic numerals, outer star minute markers, Arabic quarter hour numerals, sonnerie/silence lever in the dial plate. Blued steel Breguet hands.
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A frosted gilt movement, full plate, turned pillars, fusee with chain, spring barrels for the striking and alarm trains, polished steel hammers, verge escapement, brass three-arm balance, blued steel balance spring, pierced and chased continental type balance cock, polished steel V-shaped regulator arm with index scale, striking and repeating on a bell at the quarters or upon request. Dial signed.
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Diameter: 109 mm
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Signed: Hubert Sarton  Liege
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The dial is slightly restored.
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Hubert Sarton was born in Paris in 1748. Around 1772 he became a pupil of J. Le Roy. Sarton settled in Liège, where he died in 1828, at the age of 80. In 1782, he published a “Description de plusieurs pièces d’horlogerie”. He made clocks with the carillon, regulator escapements with compensation, clocks with decimal indications, self-winding watches, etc.