Exceptional Swiss gold and enamel dress watch with miniature Circa 1971

Gold watch with enamel horse on the battlefield
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Exceptional Swiss 18 carat yellow gold keyless dress watch, circa 1971. With polychrome painted-on enamel miniature Guerre Des Souabes signed M. Bischoff.
A polished case, curved bezel, U shaped bow, the back with a finely painted enamel Guerre Des Souabes by M. Bischoff, depicting the shepherd with Pan in an Arcadian landscape. Matte silver dial with applied yellow gold faceted baton indexes, outer minute divisions, subsidiary seconds and yellow gold dauphine hands. Rhodium plated movement, Geneva striping decoration, stamped twice with the Seal of Geneva quality mark, 18 jewels, straight line lever escapement, monometallic balance adjusted to heat, cold, isochronism and five positions, self compensating flat balance spring, swan neck micrometre regulator. Dial, case and movement signed.
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Diameter: 47 mm
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Signed: Patek Philippe  Genève
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Accompanied by Extract from the Archives and service letter
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Along with Suzanne Rohr and L. Pellarin-LeRoy, Marthe Bischoff was one of the very few enamellists capable of producing such exquisite work for Patek Philippe. Each of the watches painted by Bischoff was made as a unique piece. Her scrupulous attention to detail and long experience with the technique of painting on enamel could be said to have reached its zenith in the creation of the present watch.