| 摘要 |
The watch movement has wheel trains which drive an inner moving shaft (42) with spindle (42a) to bear a minute hand and a concentric member (50) with a sleeve (50b) to rotate a chronographic second hand. The concentric member is gripped within a central element (54b) which is supported by a ring (54a) and balls (54c). The ring is secured to the watch movement case by a pin |
