Fully functional! This is a "Small World Joy Concert" musical clock made by Rhythm Clock Co., Ltd. Size: Approximately 40cm wide Power: 4 x size D batteries Features: Plays music every hour on the hour (12 songs in total). Figures move. Text is written on the battery cover on the back. The clock face features constellations. With its classic design, it can also be enjoyed as a retro and modern interior decoration. Manufacturer: Rhythm Co., Ltd. (formerly Rhythm Tokei Kogyo). A Japanese precision equipment manufacturer that has been manufacturing and selling clocks since 1950. Antique, vintage, musical clock, automaton, working, functional