Swiss 18K gold, enamel and diamond set verge watch Circa 1770

Gold quarter repeating chatelaine watch
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An extremely rare quarter repeating pocket watch with a matching chatelaine made by Philippe Terrot & Jean-Pierre Achard in Genève, Switzerland, circa 1770. The open faced case of this watch, which was crafted from 18 carat gold, has a bell, the back lid is decorated with a Starry Sky motif, the stars set with diamonds on an engine turned blue enamel ground surrounded by a multi coloured floral and foliage paillon rim and an outermost thin white enamel rim, a diamond set bezel on the front, both opening knobs and the pendant are also set with a large diamonds. The white enamel dial has Roman hours, outer minute divisions, outermost Arabic five minute numerals and original silver hands set with diamonds. The numbered movement has a verge escapement, repeating the hours and quarter hours on a bell.
Dial and movement are signed.
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Diameter: 43 mm
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Weight: 68 g
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Signed: Ph^e Terrot & Achard
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Terrot
Philippe Terrot was one of the most important Geneva makers of the 18^th century.

Gold and enamel verge watches with real diamonds are extremely rare, mostly imitations of diamonds were used.

Comparable watches can be found in the Hermitage collection. Another example with diamond setting and a repeater is known from the same manufacturer. That piece was sold in Geneva for more than CHF 23.000.