Swiss, circa 1815. Fine and unusual large 18K gold, half skeletonised, quarter repeating watch with automaton Jacks and a small concealed erotic automaton scene. Three body, Empire with scalloped band the back engine-turned in a sunburst pattern. Hinged gilt brass cuvette. Small white enamel chapter ring with Breguet numerals. Gilt brass hands. Flanked on each sides of the dial over the repeating work set on the engine-turned gilt brass front plate, "Martin-Martine" type varicoloured chased gold Jacks, strike the hours and quarters on two bells. A small blued steel panel below the dial with an applied basket of flowers surmounted by a couple of doves, disclose the small automaton erotic scene driven by the repeating train. Gilt brass full plate with cylindrical pillars, fusee with chain, verge escapement, plain brass three-arm balance, flat balance spring, gilt brass continental cock with garnet end-stone. Repeating on two gongs by depressing the pendant. Diam. 59 mm.