Important Collector's Wristwatches, P...

New York, Dec 01, 2004

LOT 91

Ulysse Nardin, Locle & Genève, "Cronógrafo Medical", No. 200544, case No. 302431. Produced in the early 1900s. Fine and rare, keyless, 18K yellow gold pocket watch with single button chronograph, instantaneous 30-minute register and pulsometer.

C. Four-body, "demi-bassine", solid, polished, engine-turned case back, gold hinged cuvette with UN inscription. D. White enamel with Arabic numerals, outer minute and chronograph divisions, outermost pulsometer graduation to 30 pulsations, subsidiary sunk seconds dial at 6, sunk 30-minute register at 12. Blued steel "spade" hands. M. Cal. 21''', rhodium plated, "fausses côtes" decoration, 23 jewels, straight line lever escapement, cut bimetallic compensation balance, blued steel Breguet balance spring.Dial, case and movement signed.Diam. 55 mm.