| 摘要 |
The invention relates to a chronograph mechanism comprising a retrograde minute counter (6, 25, 26, 27), an hour counter (12, 14, 17) and means for selectively and manually controlling the start and the stop of said counters. The hour counter (12, 14, 17) includes a planetary gear (12) comprising at least one power-off mobile (12a) kinetically connected with the finishing gear train and bearing satellite gears (12b) engaging a solar mobile (12c), two output mobiles, wherein the first one (12g) is capable of displacement between two end positions, is connected to the solar mobile (12c) and is kinetically connected to an hour-counting member (17) while the second one (12f) is kinetically connected to the satellite gears (12b), two stop members (21a, 21b) kinetically connected with said column gear (1) for respectively and selectively stopping the two output mobiles (12g, 12f), and elastic return means (16) that constantly tends to return the first output mobile (12g) to its first end position. |
