French octagonal verge one-handed pendant watch Circa 1650

Silver, enamel, metal and rock crystal pendant watch by Jean Gaspard Du Val
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A fine French one-handed octagonal Renaissance pendant watch, circa 1650. This pocket watch has a gilt full plate movement with a verge escapement. The silver enamel dial features a silver chapter ring with black enamel Roman numerals, an inner minutes track, half-hour markers, a steel single hand, and engravings of a village at the centre. The watch case is made of metal and faceted rock crystal, adorned with enamel decoration on the bezels and the pendant. It was created by watchmaker Jean Gaspard Du Val in the early 17th century and bears his signature on the movement.
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Diameter: 44 x 29 mm
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Signed: Jean Gaspard du Val
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Jean Gaspard Duval, or Du Val, was probably born around 1600 and worked as a watchmaker, probably in France; he is listed without a location. In Geneva, there was also a Jean Gaspard (Gaspard Jean) Duval, who was born on April 18, 1637, in Gex, France. But he was a citizen of Geneva and was married three times. His eldest daughter, Marthe Duval (1668-1740), married the watchmaker Frédéric Soret. The son from his third marriage, Samuel Duval, became a watchmaker.