Breguet is also taking part in the Only Watch charity auction and is doing so with a unique piece, the Classique Grande Complication Réveil Musical, equipped with an 18-carat white gold case 48 millimetres in diameter. The jewel in the crown of this watch is undoubtedly its movement, capable of reproducing the melody of "Castel in the sky" at will or at a preset time. Not only that. In fact, the centre of the dial of the watch rotates in turn, until the hand of the child reproduced on the same dial reaches that of an adult, symbolising solidarity and intergenerational support for research against Duchenne muscular dystrophy. The movement used is the Breguet calibre 0900, mechanical with automatic winding (59 jewels, 55-hour power reserve), also equipped with a silicon escapement wheel.
