This is a vintage 1970s Soviet-era Luch miniature mechanical travel clock.It features a distinctive black and silver casing designed to look like a small transistor radio.The timepiece, often referred to as a pocket or travel clock uses a AA battery.,These clocks were manufactured by the Minsk Watch Factory in the USSR. I have tested the clock Nd cant seem to get it to work and the two tiny screws on battery cover are missing. It comes with original plastic case and is highly collectable