Custom-made 18kt Gold Triple Calendar Hunter Case Watch

Custom-made 18kt Gold Triple Calendar Hunter Case Watch, Switzerland, no. 20860, c. 1887, enamel roman numeral dial with subsidiary day-of-the-week, day-of-the-month, and seconds dials, and an opening for the month, pierced gold hands, unmarked, stem-wind, lever-set bar-type movement, cuvette marked "Fabricado Especialmente Para Jose L. Vernengo, Noviembre 1887, No. 20860," engine-turned case with front cover monogrammed, dia. 55 mm, 137g.