Swiss navette shaped watch with visible balance Circa 1800-1810

Unsigned gold form watch attributable to Henry Capt or Piguet & Cap
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A Swiss, key winding, navette shaped, pendant form watch with visible balance, circa 1800-1810.
Pearl set, 18 Carat yellow gold and enamel case. Dial with visible diamond set balance and subsidiary dial for the seconds at 12 o’clock and the time at 6 o’clock. Navette shaped (32 x 18 mm), full plate, gilded brass movement with going barrel, cylinder escapement, monometallic balance (gilded brass), and blued steel flat hairspring.
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Dimensions: 36 x 20 mm
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Signed: No name
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Genevan pendant form watches with visible balance, dating from the early 19th century, are extremely rare. They can be attributed to watchmakers such as Henry-Daniel Capt (1773-1841) and Isaac-Daniel Piguet (1775-1841) ?? associated between 1802 and 1811 ?? specialised in the manufacture of this type of luxury goods, sometimes fitted with automata and/or music mechanisms, in the form of pendants or rings, regardless of their watches and their snuff boxes. The rare examples referenced are often enriched with half pearls, while the model set with rose cut diamonds shows only very rare inclusions. The Patek Philippe Museum, Geneva, kept a few objects of this type in its collections, including one signed by Piguet & Capt (Inv. S-99).