| 摘要 |
The invention relates to a chronograph clockwork movement for time measuring comprising, in particular, a control lever (17) actuatable by a first control member (S) for alternatively activating or deactivating a time measurement. The inventive chronograph clockwork movement also comprises clutch means (28, 29, 65, 68) for driving or not a second timer (51) in response to an action produced on the control lever and selective locking means (28, 29, 65, 68) for locking the second timer in response to an action produced on said control lever. A lever (2) and a hammer (4) for resetting the second timer to zero are also provided. The clockwork movement is arranged in such a way that a user does not feel any difference, while measuring a time, whether the second timer is pre-set or not. In addition, said clockwork movement is provided with a structure enabling to activate time measuring by delaying the effective departure of the second timer until an external resetting device (R) controlling the lever (2) is released in the rest position thereof. |
