Mechanical watches, complicated by additional functions, have recently become especially relevant. All the more valuable are watches that have a set of unique functions. A few years ago, the Swiss brand Boegli announced the development of the first mechanical wristwatches, complicated by an alarm clock function and a musical melody. The great experiment of watchmakers ended with the triumphant release of a series of the world's first and only wristwatches with a musical mechanism that plays complex melodies of Mozart and Vivaldi at the appointed time. When developing watches of such complexity, the craftsmen had several difficult tasks at once. It was necessary to create a complex musical mechanism, miniature in size, but at the same time creating not sharp annoying signals, but beautiful deep sounds of classical music. As a result, the company's craftsmen managed to assemble a tiny musical drum, which is now the smallest in size in the world. A miniature musical mechanism is an exclusive thing. It is handmade, and every detail of it is unique.