Tavernier, circa 1820. Rare 18 ct. gold Tavernier mechanical moon phase astronomic calendar key. | Important Watches, Wristwatches and Clocks | Geneva, Hotel Des Bergues, 15th October 1994

Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Oct 15, 1994

LOT 39

Tavernier, circa 1820. Rare 18 ct. gold Tavernier mechanical moon phase astronomic calendar key.

CHF 8,000 - 10,000

Sold: CHF 14,950

C. Empire, polished, glazed on both faces. D. White enamel on the front with days of the week and outer date ring (hair lines). Blued steel "arrow and serpent" hands. Polished gold on the rear face with moon phase aperture, its age engraved on the border. M. Ail the functions advance by depressing a small lever which protrudes out of the band each time the key is inserted on the winding square. Signed on the dial. In good condition. Diam. 23 mm.

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Notes

A reproduction of the original instructions supplied by Tavernier for such astronomical keys, is published by Mathieu Planchon in Musée rétrospectif de la Classe 96, Horlogerie à l'Exposition Universelle Internationale de 1900 à Paris, p. 141, pl. CXVIII bis.