No, our watch winders are specifically designed to accommodate a wide range of watch sizes and weights, including heavier mechanical watches. Mechanical watches, especially automatic ones, rely on the movement of the rotor to wind the mainspring. Our winders use precise rotation mechanisms that ensure proper winding, regardless of the weight of the watch. Even heavier watches, up to a certain weight limit, will not hinder the winder’s ability to complete the full rotation cycle. The winder is calibrated to provide consistent, gentle movement to prevent strain on the watch’s movement, ensuring it’s always properly wound without risking damage or stalling.