Push-piece winding device for watches

A winding device arranged to be secured to a structure of a watch comprising a case containing at least one barrel, a stem, movable with respect to said case, for controlling at least the hand-setting function, said winding device comprising a retractable bayonet push-piece which is telescopically extendable, comprising, between a pipe arranged to be fixed to said case and a user-actuatable head which carries a control member, first elastic return means tending to move said head away from said pipe, said head being movable in translation with respect to the longitudinal axis of said pipe, between two extreme end positions, which are a stop position, wherein said head is as close as possible to said case, and wherein said stop position said head has one rotational degree of freedom with respect to the longitudinal axis of said pipe, and an activated position which is a position of maximum elongation, accessible to the user, and wherein said head is indexed in rotation with respect to said case in an indexed angular position, said head being capable of occupying, between said two stop and activated positions, a rest position wherein said head is capable of being immobilised longitudinally with respect to said pipe, in at least one angular locking position which is different from said indexed angular position, said push-piece, which is independent of said stem, being dedicated exclusively to the winding function and being arranged to indirectly drive at least the drum of said at least one barrel or a ratchet-wheel in order to wind said at least one barrel, said control member being movable linearly and arranged, upon a user action, for driving at least one movable rack against second elastic return means, wherein said at least one rack is slidably mounted and guided by guide means or by at least two supports, and cooperates with a winding wheel set which meshes with an intermediate rack actuated by at least one return spring comprised in said second elastic return means.