This Ham clock is a mechanical clock with a battery-controlled motor that winds up the main spring every 8 minutes. You will hear this signal of winding. The front round disc with the orange plane is the second hand. The silver hand displays the minutes on the rear scale. In between is the hourscale.with day and night. The back scale (minutes) also shows the world map with country prefixes for short wave amateur radio stations. Here, you can also read the hour in other cities or continents. This clock with aluminium fixture has a plexiglass protection at the front. The clock is 18.5 cm high, 17 cm wide and 10 cm deep at the bottom. The clock weighs 750 gr. This Ham clock is both visually and technically as new and comes with a new battery. This clock is particularly rare in this condition. Shipping, well packaged and with track & trace. Pick up is always possible.