Swiss watch jumping hour and retrograde seconds Circa 1820

Gold technically interesting and rare lépine  
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A technically interesting and rare lépine with jumping hour and retrograde seconds, made by F. Pernetti in Genève, Switzerland, circa 1820. The open faced plain and numbered case of this watch is crafted from 18 Carat gold and has engine turned decoration on the back lid. The silver engine turned dial has an aperture at twelve o’clock for the jumping hours, a decentral minute ring and a fan form aperture for the very rare retrograde seconds at six o’clock. The numbered movement has a lépine caliber, a cylinder escapement and four rubies.
Case and movement have matching numbers and the cuvette is signed.
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Diameter: 46 mm
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Weight: 54 g
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Signed: F ^x. Pernetti, à Genève
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Felix Pernetti
Felix Pernetti (1750 – 1829) is recorded by O. Patrizzi in Dictionnaire des Horlogers Genevois, where Pernetti is noted both for the high quality of his watches as well as his manufacture of complication watches.
He was known for several notable achievements in the field of horology:

• Innovative Watch Designs: He created intricate and high quality timepieces that showcased both craftsmanship and aesthetic beauty.
• Technical Advancements: Pernetti contributed to the development of watch mechanisms, improving accuracy and reliability.
• Recognition: His work earned him respect among contemporaries in the watchmaking industry and he became a prominent figure in Genève’s horological community.
• Influence on Future Generations: His techniques and designs influenced later watchmakers, helping to shape the evolution of watchmaking in Switzerland.

These contributions helped solidify Genève’s reputation as a center for fine watchmaking during that era.