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 a chronograph mechanism comprising at least one minutes counter and one hours counter which are designed to be located both on the same side of the plate, first and second resetting members, each having a bearing surface and being able to pivot between a low position, in which each bearing surface cooperates with the periphery of a resetting cam of one of the counters, and a high position, in which each bearing surface is located at a distance from the corresponding cam. The mechanism comprises retaining means for keeping each of the resetting members in its high position, comprising a first retaining member acting directly on a first resetting member and able to be released in response to an action by a user, and a second retaining member acting directly on the second resetting member and able to be released in response to a pivoting of the first resetting member in the direction of its low position.

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.

Abstract: The tri-axial tourbillon comprises a cage (A) containing the balance (1), the escape wheel (2) and the escape pinion (3) rotating around an axis (A1) and mounted in a second cage (B) rotating around an axis (A2), the cage (B) in turn being mounted rotably in a third cage (C) rotating around an axis (A3) that is fixed relative to the timepiece, the three axes (A1, A2, A3) being perpendicular to each other.

Abstract: A spiral spring for use in connection with horology instruments is disclosed which includes a spiral spring and a collet which are produced in one piece without molecular discontinuity.