| 摘要 |
PURPOSE: To enhance the display accuracy of an elapse time and to easily regulate a wheel train at a time of assembling in a wristwatch type chronograph watch. CONSTITUTION: An operation mechanism for a timepiece is composed of a combination of a chronograph module MC and a drive module MM. The drive module MM has a third wheel 57, the gear (first power taking out device) 49 integrated with a cylinder wheel pinion and the pinion (second power taking out device) 51 fixed to a central sec shaft 53. The operation mechanism for the timepiece has the wheel (third power taking out device) 55 fixed to a third wheel 57 and the stopwatch sec hand 17, min counter hand and hr counter hand of the chronograph module MC are driven in an independent form by second, third and first power taking out devices. |
