The invention concerns an electronic device (1) comprising a case (2) provided with a glass and a bottom, said electronic device comprising at least one electronic module (6) arranged to calculate the current time, execute a plurality of functions and supply information linked to the current time and to these functions to display means (3) arranged under the glass, the electronic device comprising control means (5) comprising at least one contact area (P1) allowing the user to act on said at least one electronic module, said at least one contact area being monitored by the electronic module at a scanning frequency.