TIMEPIECE

To provide a timepiece with a long duration time while suppressing increase of the two-dimensional size and the thickness.SOLUTION: The timepiece includes: a first spring wheel having a first barrel arbor, a first power spring, and a first barrel; and a second spring wheel having a second barrel arbor, a second power spring, and a second barrel, the second spring wheel being located side by side in a plane direction perpendicular to the axial direction of the first barrel arbor and receiving a rotation of the first spring wheel. The diameter of a circle in the end of teeth of the first spring wheel is smaller than that of the second spring wheel and the thickness of the first barrel is larger than that of the second barrel.SELECTED DRAWING: Figure 10 【課題】平面サイズや厚さの増大を抑制しつつ、持続時間の長い時計を提供すること。【解決手段】時計は、第１香箱真、第１ぜんまい、および第１香箱を有する第１香箱車と、第２香箱真、第２ぜんまい、および第２香箱を有し、第１香箱真の軸方向に直交する平面方向に並んで配置されて第１香箱車の回転が伝達される第２香箱車と、を備える。第１香箱車の歯先円直径は、第２香箱車の歯先円直径よりも小さく、第１香箱の厚さは、第２香箱の厚さよりも大きいことを特徴とする。【選択図】図１０