Timepiece mechanism provided with a magnetic gear

A timepiece mechanism, comprising a magnetic gear including a first wheel and a second wheel provided with a first magnetic toothing and a second magnetic toothing respectively;

• wherein the first and second magnetic toothings are respectively formed by first and second teeth made of a soft ferromagnetic material;
• and
• wherein the magnetic gear further comprises a third wheel arranged between the first and second wheels and provided with first permanent magnetic poles forming the magnetised teeth of a third magnetic toothing comprised in the third wheel and which is configured in such a way that first magnetic fluxes, having alternating polarities, emerge respectively from the magnetised teeth, the third wheel and the first wheel being arranged in such a way that the third magnetic toothing has a first magnetic coupling with the first magnetic toothing generated by said first magnetic fluxes which momentarily polarise, in magnetic attraction, teeth of the first magnetic toothing, momentarily located in a first magnetic coupling zone with the third magnetic toothing and through which first magnetic fluxes from among said first magnetic fluxes respectively flow, the third wheel and the second wheel being arranged in such a way that the third magnetic toothing or a fourth magnetic toothing, which is comprised by the third wheel and which is formed by second permanent magnetic poles from which second magnetic fluxes emerge with alternating polarities, has a second magnetic coupling with the second magnetic toothing, which is generated by said first magnetic fluxes, or respectively by said second magnetic fluxes, which momentarily polarise, in magnetic attraction, teeth of the second magnetic toothing which are momentarily located in a second magnetic coupling zone with the third magnetic toothing or with the fourth magnetic toothing and through which first magnetic fluxes from among said first magnetic fluxes flow, or respectively though which second magnetic fluxes from among said second magnetic fluxes flow.