Backlash take-up wheel

A backlash take-up timepiece wheel, for meshing with a second toothing formed of second teeth of given width arranged consecutively with a second constant pitch on a second pitch diameter of an opposing mobile component, said backlash take-up wheel comprising, arranged to mesh with said second toothing, a first toothing on a first pitch circle comprising a series of identical pairs of teeth arranged consecutively with a first constant pitch on said first pitch circle, each said pair comprising, on either side of a radial axis, a first flexible tooth and a second tooth, wherein the pitch thereof varies between two successive teeth, between a smaller pitch which is smaller than the theoretical pitch for meshing with a given opposing mobile component, and a larger pitch which is larger than said theoretic pitch, the total of said smaller pitch and said larger pitch being equal to two times said theoretical pitch, and in that each said tooth is placed on a flexible arm, attached to a hub of said backlash take-up wheel, wherein each said second tooth is a flexible tooth, in that a first distance is measured on said first pitch circle between said first tooth and said second tooth of the same said pair, and a second distance is measured on said first pitch circle between one said first tooth and one said second tooth which are adjacent but appertain to different consecutive pairs, and wherein said first distance is different from said second distance.