Important Modern and Vintage Timepieces

Geneva, Mar 27, 2011

LOT 29

Longines Monopoussoir Chronographe ? 9 Grand Prix? Longines Monopoussoir Chronographe, Movement No. 4627095. Made in the 1930s. Very fine, 18K yellow gold wristwatch with single-button chronograph, register and three different tachometer scales. Accompanied by the original box and guarantee.

C. Three-body, polished, rounded bezel, curved lugs, snap-on case back. D. Enamel, white with painted black Arabic numerals, subsidiary dials for the seconds and the 30 minute register, inner 1/5th seconds track, red tachometer scale for measuring distance over 100 meters, outermost tachometer black scale for measuring distance over 1000 meters. Blued steel Breguet hands. M. Cal 13.33, frosted gilt, straight line lever escapement, bi-metallic balance, self-compensating Breguet balance spring, index regulator. Dial, case, and movement signed. Diam. 34 mm Thickness 13 mm.