According to the present invention, in an electronic timepiece with a solar cell comprising a timepiece movement, a timepiece case for housing the timepiece movement, a casing ring for housing and holding the timepiece movement in the timepiece case, a solar cell and a dial, the solar cell is disposed almost vertically to a solar cell positioning portion provided in the casing ring, and the solar cell has a slender strip shape formed on a flexible substrate. Consequently, a solar cell need not be disposed in a timepiece movement, and it is only necessary to change a casing ring as an external component even when a panel cover diameter is changed, allowing a common use of a timepiece movement. Further, a solar cell can be coiled to match the size of a casing ring when it is incorporated in the casing ring, therefore a common solar cell can be used despite a change in the panel cover diameter of the timepiece.