Displaying device for hour and minute counters of chronograph located in right half of dial of timepiece e.g. wrist watch, has additional displayed grandeur units counter formed of units callback display and display driving mechanism

摘要

The device has a graduation (1) continuously covering multiple tens of grandeur units, where the graduation is cooperated with a needle (2). An additional displayed grandeur units counter is formed of a units callback display and a display driving mechanism, where the units callback display is concentric to the graduation. The units callback display is composed of an aperture (3) practiced in a dial of a timepiece.