Measures 7″ H x 3″ W There are 2 separate wind up mechanisms. The one at the top one winds the clock, sets the clock time and sets the alarm time. At the bottom, is a winder key for the music and ballerina and an alarm shutoff arm. Ballerina Alarm Clock in near mint condition, keeps time very well. Clock winds and sets time and alarm at top. Winds music alarm at bottom with shutoff. Made about 65 years ago, using the unparalleled Thorens Swiss music box movement, this will be a conversation piece to hand down to your generations or to a friend or relative as a cherished gift. I know you will love this amazing and very different alarm clock. The Blue Danube, Op. Johann Strauss the Younger. The work epitomizes the symphonic richness and variety of Strauss’s dance. Which earned him acclaim as the “waltz king, ” and it has become the best-known of his many dance pieces.