Approx. Ø55,5mm, approx. 143g, 14K red gold, Savonnette à-goutte, manufacturer punch Ditisheim La Chaux-de-Fonds, No. 11539, made for Adolf Koenigsberger Berlin, factory glazing, precision anchorwork of high quality, formerly with fine regulation (swan neck missing), voill calendar with lunar phase, chronograph and minute repetition, enamel dial, red gold hands, walkable, but urgently cleaning and need adjustment, imposing, highly complicated precision watch. Adolf Koenigsberger (1844–1915) was a personality of Jewish community life in Berlin and engaged in the Humanity Association Gewul Tauw.