Electronic timepiece, hand position detection method and storage medium

A method for hand position detection executed by a control unit of an electronic timepiece comprising, in addition to the control unit, a plurality of hands and a plurality of detection units that detect external light, arranged corresponding to the plurality of hands, the method comprising:

• performing external light detection operations that respectively determine whether or not external light of a threshold value or more is detected at the plurality of detection units while moving the plurality of hands by a predetermined distance, respectively, and when there is a hand among the plurality of hands for which the external light detection operation detected external light and there is another hand among the plurality of hands for which the external light detection operation did not detect external light, performing the external light detection operation for said another hand again, wherein the electronic timepiece further includes a reference illuminance detection unit that detects an illuminance of external light, and wherein when a detection result by the reference illuminance detection unit is an illuminance outside a predetermined range, the external light detection operations are not performed.

A non-transitory computer readable storage medium that stores a program executable by a control unit of an electronic timepiece that comprises, in addition to the control unit, a plurality of hands and a plurality of detection units that detect external light, arranged corresponding to the plurality of hands, the program causing the control unit to perform the following:

• performing external light detection operations that respectively determine whether or not external light of a threshold value or more is detected at the plurality of detection units while moving the plurality of hands by a predetermined distance, respectively, and when there is a hand among the plurality of hands for which the external light detection operation detected external light and there is another hand among the plurality of hands for which the external light detection operation did not detect external light, performing the external light detection operation for said another hand again, wherein the electronic timepiece further includes a reference illuminance detection unit that detects an illuminance of external light, and wherein when a detection result by the reference illuminance detection unit is an illuminance outside a predetermined range, the external light detection operations are not performed.