アナログクオーツ式クロノグラフ時計における瞬時帰零機構の開発(技術報告)
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概要
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We developed an analog quartz-type chronograph watch with new chronograph reset mechanism. This mechanism enabled no adjustment of reset and reduction of the number of the chronograph parts. In addition, by the adoption of the asymmetry heart cam, it became hard to be affected by the coefficient of friction and was able to simplify heart cam production.
- 2012-12-10