Swiss new-old-stock open faced silver chronometer Circa 1990

Silver deck watch by Cortébert
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High-quality, new-old-stock Swiss silver open faced pocket chronometer, circa 1990. Gold plated chronometer movement. Silvered dial with Roman hours and outer minute divisions, subsidiary seconds, blued steel hands. Case glazed on both sides. Dial signed, movement signed and numbered.
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Diameter: 57 mm
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Weight: 133 g
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Signed: Chronometre Cortébert Swiss made