Swiss silver calendar coach watch with open-face Circa 1775

Silver open faced coach watch by Jaques Roux
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A large Swiss silver pocket watch with centre-seconds and small eccentric hour- and minute-chapter, circa 1770-1780.
Silver, polished, à goutte case with case maker’s punch mark C&C under the crown and a large lateral hinge. Enamel dial with Arabic numerals, eccentric hour indicator, centre seconds, eccentric chapter rings to indicate the date and weekday, and gilt hands. Key-winding, gilded brass, full plate movement, florally engraved, with chain/fusee, conical movement pillars, verge escapement, monometallic balance, and blued steel flat hairspring Two horological complications: Date of the month (subsidiary dial at 10 o’clock), Day of the week (subsidiary dial at 2 o’clock; indications given in French). Dial and movement signed.
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Diameter: 84.5 mm
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Signed: Jacques Roux
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Jaques Roux, Swiss watchmaker in Geneva
Jaques Roux was born in Geneva in 1756 to Jaques Roux senior and Marie Magdelaine Bost. He married Madeleine Dalleizette (before 1764-after 1833), and two daughters are known from this marriage, Anne Jeanne (1784-1794) and Marie Louise Roux (1783-after 1833). Marie Louise married the watchmaker Jean François Macaire.
On July 17th, 1833, Jaques Roux died in Geneva, possibly 77 years old.