This wall clock was produced by Chronotechna in former Czechoslovakia during the 1950s. It features a blue metal frame, an iron dial,an aluminium hands and a clear glass cover. The piece has been converted into a battery-powered clockwork and requires only one AA-battery. The weight of the clock is 3 kg.The diameter is 43 cm. This piece has an attribution mark, I am sure that it is completely authentic and take full responsibility for any authenticity issues arising from misattribution