Abstract: A power reserve display mechanism includes a differential (22) having: a first input (22a) connected to a ratchet (16) of a barrel (24) and to an oscillating mass automatic winding system, a second input (22b) connected to the drum of a barrel (24), an output (22c) connected to a display system. The display system includes at least one disc (40) provided with digits for displaying numbers between a minimum number and a maximum number. Moreover, the disc is connected to the output (22c) of the differential (22) via a reduction train (26), arranged such that the display system displays the minimum number when the barrel is empty and the maximum number when the barrel is maximally loaded. The reduction train and the automatic winding system are arranged such that the disc advances by one pitch each time the oscillating mass performs on revolution.

Abstract: A timepiece has a basic movement including at least one barrel (12) and a set of hands (14) for displaying the time now, the set of hands being situated at a first level, a mechanism for a supplementary function connected to at least one hand (18a) for displaying the supplementary function, the hand being situated at a second level and on a different axis from the set of hands (14), and an automatic winding mechanism for the barrel (12), including an oscillating mass (24) consisting of a carrier (24a) and a heavy sector (24b) situated at the periphery of the carrier. The carrier (24a) pivots in a plane situated between the first and second levels.

Abstract: A power reserve display mechanism includes a differential (22) having: a first input (22a) connected to a ratchet (16) of a barrel (24) and to an oscillating mass automatic winding system, a second input (22b) connected to the drum of a barrel (24), an output (22c) connected to a display system. The display system includes at least one disc (40) provided with digits for displaying numbers between a minimum number and a maximum number. Moreover, the disc is connected to the output (22c) of the differential (22) via a reduction train (26), arranged such that the display system displays the minimum number when the barrel is empty and the maximum number when the barrel is maximally loaded. The reduction train and the automatic winding system are arranged such that the disc advances by one pitch each time the oscillating mass performs on revolution.

Abstract: A timepiece has a basic movement including at least one barrel (12) and a set of hands (14) for displaying the time now, the set of hands being situated at a first level, a mechanism for a supplementary function connected to at least one hand (18a) for displaying the supplementary function, the hand being situated at a second level and on a different axis from the set of hands (14), and an automatic winding mechanism for the barrel (12), including an oscillating mass (24) consisting of a carrier (24a) and a heavy sector (24b) situated at the periphery of the carrier. The carrier (24a) pivots in a plane situated between the first and second levels.