English pair cased watch with simple rotating automaton Circa 1730

Silver verge pocket watch with automaton by Dentan
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A remarkable, English pair cased verge pocket watch with simple rotating automaton Martyrdom of St. John Nepomuk, circa 1730.
Two cases: a silver, polished, ray skin outer case with pique pins; and a silver polished inner case. Signed, silver, champlevé dial with inlaid radial Roman numerals, fan-shaped aperture showing the alternating automaton scenes activated by pressing the pendant: five polychrome enamel scenes relating to the martyrdom of St. Nepomuk, and with Louis XV hands. Fine full plate movement, keywind, applied engraved and pierced ornaments, fire gilt, signed, chain/fusee, movement pillars, three-arm brass balance, fine florally engraved, and pierced balance cock  and mascaron.
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Diameter: 50 mm
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Weight: 113 g
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Signed: Dentan, London
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The silver champlevé dial between “11” and “1” shows a fan-shaped aperture showing the alternating automaton scenes activated by pressing the pendant: five polychrome enamel scenes relating to the martyrdom of St. Nepomuk. He is the saint of Bohemia (Czech Republic), who was drowned in the Vltava river at the behest of Wenceslaus, King of the Romans and King of Bohemia. Later accounts state that he was the confessor of the queen of Bohemia and refused to divulge the secrets of the confessional. Based on this account, John of Nepomuk is considered the first martyr of the Seal of the Confessional, a patron against calumnies and, because of the manner of his death, a protector from floods and drowning.