Patent ID: 7957226

Claim:
A plane timepiece wheel including: a first toothing defined by a first pitch P, a first head diameter D, a first foot diameter d 1 , and including a plurality of first teeth, wherein each first tooth of the plurality of first teeth is provided with a tip, wherein at least one portion of the tip extends angularly, wherein the at least one portion of the tip is cut so as to form a second toothing that includes a plurality of second teeth that is coplanar and concentric to the first toothing, wherein the second toothing is defined by a second pitch p that is less than the first pitch P of the first toothing, a second head diameter D that is equal to the first head diameter D of the first toothing, and a second foot diameter d 2 that is greater than the first foot diameter d 1 of the first toothing, wherein the first toothing is adapted to engage a first member of a timepiece display mechanism and the second toothing is adapted to engage a second member of a correction device, wherein the correction device is operably connected to the timepiece display mechanism.