Timepiece
Patent Information
- Authority / Receiving Office
- CN ¡ China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CITIZEN WATCH CO LTD
- Publication Date
- 2021-12-28
Smart Images

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Abstract
Description
technical field
[0001] The present invention relates to timepieces. Background technique
[0002] In the past, there were clocks with crowns. In such timepieces, the crown is connected to the movement via the stem. Then, the clockwork is driven by transmitting the rotational force generated by the rotation of the watch to the movement to wind up the mainspring of the movement. In addition, in such a timepiece, the crown can be pulled out, and the user of the timepiece can rotate the crown in the pulled-out state to perform time adjustment operations and the like.
[0003] In such timepieces, in order to prevent unintended operations by the user, some of the timepieces lock the crown on the case through a screw structure or the like to restrict the pulling out of the crown. However, whenever the user wants to wind up the mainspring, he needs to first unlock the crown and then rotate the crown, which sometimes feels cumbersome. Patent Document 1 describes a timepiece whose...