Swiss 18k gold repeater made for the French market Circa 1820

Gold watch decorated with a map of France
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A fine and unusual Swiss, quarter repeating, 18K gold and champlevé enamel, watch decorated with a map of France, circa 1820. Made for the French market. The back is decorated with a green and white champlevé enamel map of France, bezels and bands with green champlevé enamel in a repeated leaf and flower pattern, gold locking bolt at 1 o’clock for the repeat Hinged gold cuvette. White enamel dial, radial Roman numerals, outer minute track. Gold spade hands. A frosted gilt movement, three-quarter plate, cylinder escapement, three-arm gold balance with flat balance spring, repeating mechanism set on the backplate, repeating on gongs activated by depressing the pendant.
Diameter: 55 mm
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Signed: La Belle  Swiss
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Enamelled maps are rare. Breguet made a few, several others are known to have been made for the Oriental market. The making of them was a painstaking job. First, an engraver had to chisel out the gold, leaving the names of towns and rivers, etc. Then the enameler filled in the reserved space with enamels, leaving the outlines and place names in gold.