Seiko 2015 special collector's edition melodies in motion clock. Plays 70's pop music, every hour on the hour or when the demo button is pushed the clock comes to life, numbers scrambling, pendulum made of Swarovski crystals swings back and fourth. 24 different melodies to choose from. This clock is a great addition to any room in your house. Requires C batteries and has a light sensor that turns off music when room is dark.