Swiss diamond-set pocket watch in gold and enamel Circa 1790

Open faced pocket watch by Roux, Bordier & Comp.
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A Swiss, remarkable, key-winding, silver, gold, enamel and diamond-set verge Directoire pocket watch with visible paste-set balance, circa 1790. Made for the Spanish market and retailed by Aranaga, Bilbao (Spain).
Round-shaped, 18-carat yellow gold, silver, enamel and diamond-set case. Royal blue flinqué enamel (translucent enamel over guilloché engine turning) case back with gold paillon and rose-cut diamonds flower garlands; in the centre, the aperture for the balance inside a silver frame border set with rose-cut diamonds; on the right, a young lady; on the left, an old tower near a stream; silver border set with rose-cut diamonds; the painting on enamel on gold attributable to Jean-Louis Richter (1766-1841), Geneva.
Enamel dial with Roman radial hours, outer minutes track with Arabic fifteen minutes numerals, and decorative skeletonized hands. Full plate, gilded brass movement with fusee and chain, verge escapement, monometallic balance, and blued steel flat hairspring. Dial, case and movement signed. Accompanied by a later leather fitted box and a contemporary brass key.
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Diameter: 54 mm
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Weight: 81 g
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Signed: Aranaga, Bilbao / Roux, Bordier & Comp., Geneva
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Roux, Bordier & Cie, Geneva
The Bordier brothers were associated watchmakers as early as 1794. In 1815, they worked at the Grand Mézel. In 1794, they took Roux and Romand into partnership, establishing the company Bordier, Roux, Romand & Cie. Between 1794 and 1811, they were specialised in automaton repeating watches as well as complicated or skeletonized watches with calendar, often decorated with painted enamels, pearls and gemstones.