Timepiece display correction mechanism

The correction mechanism for a timepiece date display mechanism arranged to change the angular position of a display wheel set comprised in said date display mechanism 44 said correction mechanism includes, on the one hand, a control wheel set arranged to be controlled by user action and/or by a timepiece mechanism, and on the other hand, an output wheel set arranged to cooperate with said display wheel set, said correction mechanism including a free wheel mechanism which is arranged to disengage said output wheel set from said control wheel set in a first relative direction of rotation, and to engage said output wheel set with said control wheel set in a second relative direction of rotation opposite to said first relative direction of rotation, wherein said control wheel set or respectively said output wheel set is integral in rotation with a rotor, wherein said output wheel set or respectively said control wheel set includes a cavity inside which said rotor can pivot, and in that wherein said rotor and/or said cavity includes at least a first chamber of variable radial cross-section with respect to the pivot axis of said rotor, and wherein said correction mechanism includes at least one free wheel enclosed inside said chamber, and whose dimensions are arranged to allow said free wheel freedom inside said chamber in said first relative direction of rotation of said rotor with respect to said cavity, and to cause said free wheel to lock on a wall of said chamber in said second relative direction of rotation of said rotor with respect to said cavity.