English rare watch with pendant “pull” winding Circa 1837

Gold open faced pocket watch by Viner & Co
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An English technically very interesting and rare pocket watch with pendant “pull” winding, seconds and duplex escapement, circa 1837.
18 Carat gold case with engraved “Vinctus-Invictus” (prisoners are invincible) and lion on back and hallmarks London 1837. Very rare movement patent from Viner, winding by pulling the pendant, with duplex escapement, gold screw balance, screwed gold chatons and blued steel screws. White enamel dial with seconds indication, Roman hours, very fine hairline and original Breguet hands. Dial and movement signed. Formerly nobleman’s possession.
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Diameter: 51 mm
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Weight: 85 g
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Signed: Viner & Co London
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This watch is a rarity from a technical point of view. Watches with pull&pump winding were only made /only over/ for a very short period of time. The present construction was an invention of Viner based on the further development of Berolla’s winding system. Charles Edward Viner (1788-1875) was one of the most famous London watchmakers and inventors of his time, trained by Thomas Savage, he made the finest pocket watches and carriage clocks. According to our knowledge, this is the only piece noted combining this rare winding mechanism with a duplex escapement and an additional seconds register.