| 摘要 |
An electronic timepiece includes a plurality of light-receiving elements arranged to receive external light, a light-receiving condition discriminator for discriminating a light-receiving condition of each light-receiving element, and a circuit to be controlled in response to an output signal from the light-receiving condition discriminator. The light-receiving condition discriminator discriminates that the light-receiving condition of a central one of three light-receiving elements among the plurality of light-receiving elements is different from those of end light-receiving elements, and thereupon generates an output signal.
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