PROBLEM TO BE SOLVED: To provide an electronic chronometer and a secondary battery unit that make possible common use of base parts of a movement, such as a bottom board, between ordinary analog chronometers and solar battery-type analog chronometers.;SOLUTION: An electronic chronometer comprises: an exterior case 80; a time display unit that indicates time; a solar panel 87 that is housed in the exterior case; a display control unit 36 that causes the time display unit to operate; a battery housing unit 86 disposed in a bottom board 31; a plus side contact terminal 38a connected to a plus power supply terminal 36p of the display control unit 36 and disposed to be contactable with a plus terminal of a battery to be housed in the battery housing unit 86; a minus side contact terminal 41 connected to a minus power supply terminal 36n of the display control unit 36 and disposed to be contactable with a minus terminal of the battery to be housed in the battery housing unit 86; and a contact unit 88 disposed in a position not in contact with a battery body to be housed in the battery housing unit 86.;COPYRIGHT: (C)2016,JPO&INPIT
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