Citizen Watch Company, Ltd.

Osamu Kamisawa

Masao Mafune

Katsuhiko Komiyama

An electronic watch is formed of a case body having a display window, a movement situated in the case body, a light transmitting digital display disposed above the movement in the case body to be observed from an outside through the display window, and a solar cell unit. The solar cell unit is interposed between a part of the light transmitting digital display and the movement, and a reflecting plate is disposed under another part of the light transmitting digital display adjacent to the solar cell unit. Also, a light transmitting material is interposed between the part of the light transmitting digital display and the solar cell unit. Thus, light is supplied to the solar cell unit from the outside through the light transmitting digital display.

Electronic watch equipped with solar cell

An electronic digital timepiece having standard timekeeping, stopwatch, and timer functions, and a weekdays display section composed of a plurality of display segments selectively activated to indicate the day of the week in the standard timekeeping display mode, and which are rapidly and sequentially activated in a predetermined direction when operation is performed in a stopwatch mode, and are rapidly and sequentially activated in the opposite direction when operation is performed in the timer mode of operation, to indicate the type of operation mode.

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Tokyo, Japan

Osamu Kamisawa