The apparatus includes at least one information storing unit, a unit for processing said information, a management and control unit receiving control signals from the processing unit and a supply unit controlled by said management unit and controlling the movement of said two stepping motors above a dial bearing markings Ri representative of said information.The apparatus is characterized in that said processing unit is provided with an algorithm or correspondence table between a marking Ri and angles αiβi formed respectively by each hand from a measurement reference and in that the shape of said hands is such that when they have the angular orientations αi βi, their elongated parts can intersect above said marking Ri, or their tips can be aligned opposite said marking Ri.The apparatus may be a wristwatch.