A timepiece with a wireless function comprises a movement that displays time; a conductive case that holds the movement; a crystal that is disposed on a face side of the case and covers a face side of the movement; a conductive plate that is disposed between the movement and the crystal and reflects radio waves; and an antenna that has a substantially annular, conductive antenna electrode and is disposed along an outside edge of the conductive plate between the conductive plate and the crystal as seen in a lateral view. The antenna electrode is configured to receive the radio waves reflected by the conductive plate.