Backlash-compensating gear train for horological mechanism

A backlash-compensating gear train for a horological mechanism comprising first and second partner toothed wheel units,

• wherein each of said first and second wheel units has uniformly distributed teeth, each of said teeth having a thickness between a first flank of the tooth and a second flank of the tooth,
• wherein at least some of the uniformly distributed teeth of the first wheel unit have elastic parts (DR) that are flexible in the direction of the respective thicknesses of the teeth, the elastic parts being capable of transmitting a nominal drive torque, and
• wherein said teeth having flexible elastic parts include two adjacent teeth capable of transmitting a torque greater than the nominal drive torque,
• wherein the first flank of each of said two adjacent teeth is integral with a more rigid part of the tooth, and the second flank of each of said two adjacent teeth is integral with a more flexible part of the tooth,
• and wherein the two more rigid parts of the two teeth are adjacent to each other, wherein the two first flanks are between the two second flanks.