A timepiece with a wireless function, including a movement for displaying time; a conductive case that holds the movement; a crystal that is disposed on the face side of the case and covers the face side of the movement; a conductive plate that is electrically conductive, 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 the outside edge of the conductive plate between the conductive plate and the crystal.