Important Watches, Wristwatches and C...

Geneva, Hotel Des Bergues, Oct 31, 1998

LOT 246

Courvoisier & Jonais, Brevete S.G.D.G. Chaux-de-Fonds, Suisse, No. 20032, circa 1875. Fine 18K gold double face calendar, keyless watch, Patented No. 122, from 27 June 1871.

C. Three body, massive, "bassine et filets" with glazed back. D. White enamel on the front with Roman numerals, outer Arabic minute ring and sunk subsidiary seconds. Blued steel "spade " hands. White enamel on the rear face, the dates on the border with subsidiary dials for the months and the days of the week. M. 18"' nickel plated, 17 jewels, counterpoised straight line lever escapement, cut bimetallic balance, Breguet balance spring. Hinged nickel plated calendar work driven by the movement. Signed on the dial and back plate. Courvoisier coat-of-arms punched on the movement. Diam. 51 mm.