Ca. Ø52.5mm, ca. 116g, 18K gold, hunting case watch à-goutte, case number 375781, top class chronometer movement, tested as observatory chronometer 1. Class, chronometer balance, fine adjusting device, screwed gold chatons, Geneva stripes, double signature Ulysse Nardin and Türler Zurich, 21 jewels, lever with gold chaton, adjusted in 8 positions, extremely rare quality, perfectly preserved original enamel dial marked 'Chronometre', blued steel hands, intact, cleaning recommended because it has not been used for a very long time, dome with peripheral flat dents, but overall in very beautiful condition. The watch comes with the chronometer test report from 1929 from the chronometer database of A. Hidding.