Unusual Swiss 18K gold keyless Ricochet dress watch Circa 1965

Gold open faced lever watch 
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A fine and unusual Swiss 18 carat gold open faced carré galbé (curved square) keyless lever Ricochet dress watch designed by Gilbert Albert for Patek Philippe in Geneva,
circa 1965. Rhodium plated movement, stamped twice with the seal of the Geneva quality mark, Geneva striping decoration, 18 jewels, straight line lever escapement, Gyromax balance adjusted for heat, cold, isochronism and five positions, self compensating Breguet balance spring and a shock absorber. Gold dial, entirely bark finished, continuing the case decoration with applied baton hour indexes and black hands. Solid case, the back, band and bezel polished, the front bark finished and a trapezoidal fixed pendant. Dial, case and movement signed. Accompanied by the original presentation box.
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Dimensions: 41 x 36 mm
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Signed: Patek Philippe Genève
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Gilbert Albert, born September 20, 1930, is a renowned Genevan jewellery designer and artist.
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In 1955, he began designing wristwatch cases for Patek Philippe. Breaking away from traditional shapes, he introduced asymmetrical triangles and rhombic forms inspired by his passion for modern sculpture and works by artists such as Brancusi and Mondrian.
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Albert gave textured organic surfaces to the asymmetrical shapes of the Patek Philippe ‘Ricochet’ collection. However, many of his more revolutionary designs remained prototypes and were not produced in series.
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In 1962, he established his own workshop, designing and producing jewellery under his own name. Over the years, he became very successful, both in Geneva and internationally, receiving numerous awards for his jewellery. Gilbert Albert’s creations are exhibited worldwide.