Patent ID: 8693292

Claim:
An electronic timepiece comprising: an external case; a time indicating section that indicates the time inside the external case; a solar panel that is housed in the external case and provided with a first supply terminal and a second supply terminal; a contact section that is electrically connected to the first supply terminal; an indication controlling section that operates the time indicating section; and a battery housing section that is provided in a main plate and can house a secondary battery unit provided with a secondary battery and a primary battery as a battery in a replaceable manner, the battery housing section including a positive side contact terminal that is electrically connected to a positive supply terminal of the indication controlling section and configured such that the positive side contact terminal can be brought into contact with a positive terminal of the battery housed in the battery housing section; and a negative side contact terminal that is electrically connected to a negative supply terminal of the indication controlling section and configured such that the negative side contact terminal can be brought into contact with a negative terminal of the battery housed in the battery housing section, wherein the second supply terminal of the solar panel is electrically connected to the positive side contact terminal, and the contact section is positioned such that the contact section is not in contact with the primary battery in a case where the primary battery is housed in the battery housing section and the contact section is in contact with a charge controlling section of the secondary battery unit in a case where the secondary battery unit is housed in the battery housing section.