A rocker device for a micromechanical Z-sensor, including two rocker arms which are mounted around a torsion spring and which are asymmetric relative to the torsion spring; the rocker arms having first perforations; at least one of the rocker arms having at least one opening, a diameter of the first perforations being configured in a defined manner to be smaller than a diameter of the opening; and a cavity for connecting the first perforations to the at least one opening being formed in at least one of the rocker arms.