Abstract: This invention has for object to propose an operation level indicator device for watches with double spring barrels, both those with manual winding and those with automatic winding. This scope is reached by an operation level device, having two spring barrels 1, 2, one for winding 1 and the other for unwinding 2, a star wheel 3 integral with a display means 17. According to the invention, the winding spring barrel includes a winding pin 9 actuating a winding lever 4 dragging the star wheel 3 into positive rotation, the unwinding spring barrel 2 includes an unwinding pin 10 actuating an unwinding lever 5 that drags the star wheel 3 into negative rotation, the latter being maintained in its position by a catch 8.

Abstract: This invention has for object to propose an operation level indicator device for watches with double spring barrels, both those with manual winding and those with automatic winding.

Abstract: Date display device, intended to be fitted to a timepiece provided with a movement, a dial 10 and hands 12, 14 driven by said movement and displaying the time. A date mechanism, drives first 32 and second 34 display members, mounted to move in rotation on the movement, and provided with indices 24 26. The device is arranged so that, when the mechanism causes the units display to pass from a value n to n+1, n being an integer number comprised between 1 and 9, the first member 32 travels, in the clockwise direction, through an angle equal to 30°, and so that, when n is equal to 1, the index 24 is located in a position corresponding to the position which an hour hand would occupy, when it is one o'clock.

Abstract: Date display device, intended to be fitted to a timepiece provided with a movement, a dial 10 and hands 12, 14 driven by said movement and displaying the time. A date mechanism, drives first 32 and second 34 display members, mounted to move in rotation on the movement, and provided with indices 24 26. The device is arranged so that, when the mechanism causes the units display to pass from a value n to n+1, n being an integer number comprised between 1 and 9, the first member 32 travels, in the clockwise direction, through an angle equal to 30°, and so that, when n is equal to 1, the index 24 is located in a position corresponding to the position which an hour hand would occupy, when it is one o'clock.