Antiquorum Auctioneers Lot soldUSD 0USD 0 (NET)CHF 0 (listed)CHF 0 (NET)EstimateUSD 2 189 - 4 377CHF 2 000 - 4 000 (listed) See all lots Ulysse Nardin Antiquorum - Important Modern & Vintage Timepieces Geneva 2016 | Geneva, 13 November Movement Automatic Year of manufacture 1970 Lot number 501 Diameter 55 Location Description ULYSSE NARDIN ''CHRONOMETRO MEDICAL'' YELLOW GOLD Locle & Genève, "Chronometre", No. 200789, case No. 339545. Made circa 1915. Very fine and rare, keyless, 18K yellow gold pocket watch with oval button split-seconds chronograph, instantaneous 30-minute register and Guillaume balance Four-body, "bassine", polished. Hinged gold cuvette. White enamel with Roman numerals, outermost chronograph ring with pulsometer scale graduated for 30 pulsations, subsidiary seconds dial at 6, 30-minute register at 12. Black steel spade hands. Cal. 19''', rhodium-plated, fausses cotes decoration, 30 jewels, straight-line lever escapement, anibal-brass Guillaume balance, blued steel Breguet balance spring, swan-neck micrometer regulator, visible chronograph mechanism.