Timepiece display mechanism with an instantaneous jump function

A timepiece display mechanism with an instantaneous jump function, arranged to be driven by a timepiece movement, and comprising a stop work mechanism of the Maltese cross type with a control wheel set able to control, in part of its angular travel, the pivoting of at least one planet wheel set, wherein said control wheel set comprises a annular ring arranged to be pivoted indirectly from a driver wheel set or a cannon-pinion comprised in said timepiece movement, via a cam wheel set, said cam wheel set is arranged to move said annular ring from an activated position to a deactivated position by an instantaneous displacement of said annular ring in a first direction in order to pivot said planet wheel set about a planet wheel axis, and to move said annular ring from said deactivated position to said activated position by a controlled displacement of said annular ring, slower than said instantaneous displacement, during a return movement in a second direction, opposite to said first direction, and wherein said cam wheel set comprises a plate and a cam, which are coaxially mounted, said plate being indirectly driven by said cannon-pinion and comprising a slot for driving an eccentric finger of said cam the profile of which controls the pivoting of a driver arranged to drive said annular ring between two extreme activation and deactivation positions, said slot allowing, on the one hand, a clear jump of said driver which interacts with said cam in the deactivation direction, and on the other hand, a longer reactivation time related to the relative travel of said finger and of said slot, and wherein said cam wheel set also comprises a friction wheel, mounted coaxially with said plate and said cam, and driven directly or indirectly by said cannon-pinion, and arranged to friction drive said plate, and the angular adjustment of which with respect to said plate allows precise adjustment of the instant of jump of said annular ring.