Timepiece display device on several wheels

A timepiece (1000) comprising:

• a timepiece mechanism (200);
• and
• a display device (100) for displaying at least one magnitude relating to said timepiece mechanism (200), said display being produced in combination on a plurality of wheels (1;
• 2) arranged to be driven in rotational movements in a same direction of rotation by at least one output (3;
• 4) included in said timepiece mechanism (200), at least a said wheel (1;
• 2) being integral in rotation with an indicator (60;
• 61;
• 62) so as to display a representation of said magnitude by an angular difference between said indicators (60;
• 61;
• 62) or between a said indicator (60;
• 61;
• 62) and a fixed scale,
• wherein said timepiece mechanism (200) is arranged to drive, at a given time, only one of said wheels (1;
• 2) by a single said output (3;
• 4),
• wherein said display device (100) includes internal means for driving said wheel (1;
• 2) by another said wheel (2;
• 1), and said display device (100) and/or said timepiece mechanism (200) includes means for disengagement in at least one end-of-travel position of said wheel (1;
• 2), and
• wherein at least one of:
• a first said wheel (1) is an outer ring which includes, on the inside, an inner area of revolution (58) which is interrupted by an inner projection (56) including at least a first lateral stop surface (5;
• 6) and which includes an inner radial end (560) closer to the common axis than said inner area of revolution (58), and
• a second, said wheel (2) is an inner ring or a disc which includes, on the outside, an outer area of revolution (76) which is interrupted by an outer projection (78) including at least a lateral stop surface (7;
• 8) and which includes an outer radial end (780) farther from the common axis than said outer area of revolution (76) and than the inner radial end (560), to allow relative drive between said inner projection (56) and said outer projection (78) by abutting with each other.