Heavy Swiss sterling silver lever chronometer Circa 1992

Sterling silver Observatory chronometer by Zenith
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A heavy Swiss sterling silver open faced Observatory chronometer pocket watch, circa 1992. ½ Plate movement, a club tooth lever escapement and large Glucydur balance. Two-tone silvered, engine turned dial with Arabic hours, outer minute dots and Arabic five minute numerals, subsidiary seconds at 6 o’clock and black moon hands. The engine turned case with a reeded band. Dial signed, case and movement signed and numbered. Comes with a wooden box, blank guarantee card, brochure and the Bulletin de Marche Observatory La Chaux-de-Fonds from June 3rd, 1992.
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Diameter: 60 mm
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Weight: 191 g
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Signed: Chronomètre Zenith Swiss made
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The Zenith caliber 5011K was originally introduced in 1960. It was considered the most precise movement in its category and is probably one of the best watch movements ever made.
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Zenith SA is a Swiss luxury watchmaker. The company was founded in 1865 by Georges Favre-Jacot in Le Locle in the canton of Neuchâtel and is one of the oldest continuously operating watchmakers. Favre-Jacot invented the concept of ‘in-house’ movements, believing that only through control of the entire watchmaking process, perfection could be achieved. Zenith was purchased by LVMH (Moët Hennessy Louis Vuitton) in November 1999, becoming one of several brands in its watch and jewellery division which includes TAG Heuer and Hublot.