Small Swiss gold open faced lever pocket watch Circa 1970

Gold watch made for Türler, Zürich
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A small Swiss, 18 carat yellow gold keyless lever pocket watch by Longines in Saint-Imier, circa 1970. An open faced with a satin-finished case back. The case is made by C.R. Spillmann S.A., Chêne-Bourg, Geneva. Gilt colour metallic dial, with applied radial Roman, black painted metal indexes and black painted metal Bâton hands. A rhodium plated movement, going barrel, straight line lever escapement, Glucydur balance and self compensating flat hairspring, polished steel index regulator. Signature on the dial, case and movement.
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Diameter: 41 mm
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Weight: 36 g
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Signed: Longines, Saint-Imier
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Accompanied by the original fitted box.