Wheel with reduced mechanical friction for timepieces

A sequencer mechanism comprising a first locking wheel set driven in rotation about a first pivot axis, comprising at least one peripheral holding surface of regular geometry or respectively of regular uniform magnetic polarity, arranged to hold immobile in rotation an opposite receiver wheel set pivoting about a second pivot axis, wherein said receiver wheel set is a reduced friction wheel set comprising, at the periphery thereof, second stop elements, which are idle rollers or respectively magnets of the same polarity, and wherein, in a locking stroke of said first locking wheel set, at least one of the two elements cooperates through contact or respectively magnetization with said holding surface on either side of a plane passing through the centres of said locking wheel set and said receiver wheel set, and said first locking wheel set further comprising at least one drive surface comprising an irregular relief portion or respectively an opposite magnetization and arranged to drive said receiver wheel set in jerks, in a drive stroke of said first locking wheel set between two said holding strokes.