A blood pressure measurement device is mounted with a radio-controlled clock function in a main body without lowering reception performance of the standard radio wave of the radio-controlled clock. A substrate including a sensor mounting surface and a sensor non-mounting surface is mounted with a pressure sensor. An antenna for receiving the standard radio wave including time information of the radio-controlled clock is mounted. The antenna includes a bar-shaped magnetic body core and a coil wound around the magnetic body core. A pump is arranged such that an axis line direction of the motor and an extending direction of the magnetic body core are substantially orthogonal. The substrate and the substrate are arranged so that the sensor non-mounting surface of the substrate and the antenna mounting surface of the sensor face each other.