Electronic timepiece

A method for manufacturing an electronic device, comprising:

• providing a cylindrical exterior case in which a circuit board is housed;
• forming a bezel of a metal material to be ring-shaped, the metal material being selected according to a desired resonance frequency of the bezel such that the bezel resonates with a radio wave having a predetermined frequency corresponding to the desired resonance frequency, the bezel being formed to include an inward flange part that projects from an inner side surface of the ring-shaped bezel toward a center of the ring-shaped bezel by a predetermined distance;
• arranging the bezel on an outer upper side of the exterior case;
• electrically connecting the bezel with the circuit board;
• and
• arranging, in the bezel, a windshield member which has a predetermined diameter and which is formed of a transparent dielectric substance having a predetermined relative permittivity that is determined according to the desired resonance frequency of the bezel, the windshield member being arranged in the bezel so as to be supported by the inward flange part such that the windshield member and the inward flange part overlap each other to form an overlap region having a predetermined area that is determined by the predetermined distance and the predetermined diameter, the predetermined area being set according to the desired resonance frequency of the bezel;
• wherein the desired resonance frequency of the bezel is set by adjusting at least one of (i) the relative permittivity of the dielectric substance which forms the windshield member and (ii) the area of the overlap region where the inward flange part and the windshield member overlap each other.