Abstract: A tourbillon is disclosed which presents a carriage comprising an upper bridge 1, a lower bridge 2 and an escapement bridge 3 supporting a balance spring 4, an escapement wheel 5 and a pallet assembly 6, the lower bridge 2 presenting a circular periphery designed to fit into a groove on the outer edge of three pivoting rollers positioned between a plate and bridges of a corresponding timepiece.

Abstract: The display device, which is arranged to display the minutes and hours, includes two cams (14 and 34) driven separately and respectively from the cannon pinion (11) and the hour wheel (31) of a horological movement. A lever (15, 35) held in the idle position by a spring (18, 38), is arranged so as to be actuated on demand by means of a push button (4) placed outside the corresponding timepiece, so as to make a rack (24, 44) pivot until the moment when a sensing finger (25, 45) of each rack abuts against the periphery of the corresponding cam. Each rack during its rotation drives a pinion (26, 46) carrying hands indicating the minutes and the hour.

Abstract: A display mechanism is described, driven by the hour wheel of a mechanical or quartz horological movement, the hour wheel driving a cam controlling a rack turning about an axis and arranged in engagement with a pinion, secured to an hour hand, the cam having a configuration allowing different spaces or angles between the hours to be displayed.

Abstract: The invention relates to an analogue display device for a timepiece. The inventive device consists of display means which are disposed such as to perform jumps in relation to a dial comprising a haphazard series of values to be displayed.