A micromechanical structure including a substrate having a main plane of extension, and including a first seismic mass, the first seismic mass including a grid structure made of intersecting first mass lines and the first seismic mass being flexibly secured with the aid of first bending-spring elements, and moreover, a first line width of the first mass lines parallel to the main plane of extension being between 20 and 50 percent of a further first line width of the first bending-spring elements parallel to the main plane of extension.