Prawda, bardziej precyzyjnie - dla pilota.
ze strony Cartier: Louis Cartier granted the wish of the famous aviator, Alberto Santos- Dumont, to tell the time while in flight. All of his projects were guided by the desire for progress and 3 main principles: simplicity, practicality, innovation. Louis Cartier revolutionized watchmaking by creating the first modern watch for Santos-Dumont, intended to be worn on the wrist.
Z praktycznością słabo i do tego nawiązałem.