Timepiece wheel set with a unidirectional wheel

A timepiece wheel set with a unidirectional wheel, arranged to rotate in only one direction in cooperation with a ratchet wheel which is movable inside a ratchet wheel chamber, said wheel set comprising:

• at least one click arranged to be attached to rotate integrally with said unidirectional wheel, wherein said click forms a one-piece component including at least one spring-arm, at the head end of which, on a first side, at least one beak is arranged to cooperate directly with the toothing of a said ratchet wheel in an operating position in which said spring-arm is free, and on a second side, at least a first hook is arranged to cooperate with a second hook of complementary shape comprised in said one-piece click, in a rest position in which said spring-arm is in an extended position, the elasticity of said spring-arm allowing said first hook to be hooked or unhooked with respect to said second hook by the action of a user or of a manipulator, either by maximum elongation of said spring-arm along a length greater than that of said extended position, or by the tilting of said end, or both by maximum elongation of said spring-arm and the tilting of said end.