Jaquet Droz Perpetual Calendar Eclipse Black Enamel
Black Grand Feu enameled dial. 18-carat red gold case. Self-winding mechanical movement. Power reserve of 68 hours. Centered hours and minutes, retrograde dates and days, pointer-type month display at 12 o'clock, leap-year indicator at 12 o'clock, moon phase at 6 o'clock. Diameter 43 mm.