Swiss rare silver pocket watch for shooting contests Circa 1979

Silver pocket watch by International Watch Co., IWC Probus-Scafusia
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A rare Swiss pocket watch for shooting contests 50. Eidg. Schützenfest Luzern 1979.
Silver matted case with ornamented in high relief, likeness of Wilhelm Tell after the artistic design of Hans Erni, Lucerne. White enamel dial with radial Roman numerals and Louis XVI hands. Bridge movement, rhodium-plated, with Geneva Stripes decoration, chatoned, five adj., nineteen jewels, shock protection, Glucydur screw balance and index spring fine adjusting device.
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Diameter: 47 mm
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Weight: 80 g
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Signed: IWC Probus-Scafusia