Important Wristwatches, Watches & Clocks
Geneva, Hotel Des Bergues, Oct 17, 1992
Swiss, circa 1906.
Fine gun-metal keyless watch with patented one minute tourbillon regulator. Plain three body demi-bassine case. Gun-metal cuvette. White enamel dial with Roman numerals and subsidiary seconds. GiIt brass movement, the straight line lever escapement with cut bimetallic balance and Breguet balance spring is set on a one minute revolving carriage. Diam. 53 mm.