Danish 19 Carat gold double wheel duplex pocket watch Circa 1836

Fine and rare gold watch
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A fine and very rare Danish 19 Carat gold open faced double wheel duplex pocket watch, the case with Copenhagen hallmarks for 1836. Highly unusual gilt movement with single curved and pierced train bridge, going barrel, platinum balance with ruby endstone and compensation curb, index regulator, steel and brass paired escape wheels, key wound and set through the gilt cuvette.
White enamel dial with numbered minute ring enclosing Roman chapters, blued hands and subsidiary seconds, within a plain gold case, case, dial and movement signed.
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Diameter: 51 mm
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Signed: Ludovic Steinmetz, Klöbenhavn
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A watch closely related in style and execution to the work of Frédéric Houriet and his student Urban Jurgensen who favoured the double wheel duplex. The escapement employs separate concentric wheels for impulse and locking. In the early 19th century, it competed with the detent and lever for use in precision watches. However, the escapement is easily deranged and proved unreliable.