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Heco Miniature and Koma Midget 400 Day Clocks

Left: 1950′s Heco 400 day anniversary clock made by Kern & Sohne in Germany. The height, including the glass dome, is 8 3/8 inches. This model of clock is the slowest ticking of the 400 day clocks. The pendulum makes a half-oscillation each 10 seconds. Right: Koma (Konrad Mauch) midget 400 day clock made in the late 1950s. It is 7 1/16 inches tall (to top of finial) and 4 11/16 inches wide. The dial diameter is 2 15/16 inches (including bezel). The pendulum on this clock turns much faster than that on many 400 day clocks -- 15 half-oscillations per minute).