薄型トゥールビヨンウオッチの開発

抄録

  We developed a thin tourbillon watch for the first time as a major watchmaker in Japan with the aim of showing the people around the world the intricate charm of watches. We devised the new shape of the pallet for the escapement and realized substantial thinning and downsizing of the carriage. By using this carriage, we have developed the world's most compact (smallest) Tourbillon watch by now. And, by using titanium alloy instead of brass, we reduced the weight of the carriage and lengthened the driving time of the watch. We confirmed that the effect of the tourbillon can reduce the rate deviation in vertical positions to 10 to 17% of the conventional type mechanical watch.