| 摘要 |
The chronometer watch mechanism is contained within a case (30) and has a chronometer start/stop control (24), a reset control (26) and minute hand locking control (28). The locking control ensures that during chronometer operation the chronometer and current time minute hands are superimposed and move together and uses a mechanism which includes a cam (38d), a spring loaded hammer (36), a hammer pin (391e) and free wheel |
