Fresh to the market, the present desk timepiece is the earliest example known of such a square clock, decorated with cloisonné enamel to have appeared in public. The mechanical movement wound by speed increasing gears activated approximately every 5 hours by electric micro-rotor powered by an accumulator charged by a photo-electric cell in the top of the clock. This photo-electric energy was created and patented by Patek Philippe in 1954. The theme of the cloisonné enamel is as unusual as the clock that it decorates, signed by Deville for Michel Deville (1924-2003). Deville was one of the first enamellers to use his talents to create some of the finest enamel decorations for Patek Philippe. He was known to infuse modernity into classical themes and had a cubist approach to illustrate these themes. It is thought that he was inspired by Pablo Picasso, Juan Gris and Robert Delaunay. The cloisonné enamel is free of any restoration and is showing very vibrant colours. In exceptional condition throughout, this present lot is a terrific example.