| 摘要 |
PROBLEM TO BE SOLVED: To actualize a chronograph watch for surely and simultaneously returning an hour heart cam, a second heart cam, and a minute heart cam to zero. SOLUTION: This chronograph watch is equipped with a sub lever 464 operated by the operation of a reset button 308 to control the return-to-zero operation of an hour chronograph wheel, a minute chronograph wheel, and a second chronograph wheel. The sub lever 464 comprises a sub lever body 464d, and three heart cam contact parts 464k, 464c, and 464f contacting with the hour heart cam 332d, the second heart cam 322d, and the minute heart cam 342d. Elastic parts 464m and 464m are formed between at least one of the contact parts and the lever body 464d. COPYRIGHT: (C)2005,JPO&NCIPI
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