Patent ID: 8537641

Claim:
Timepiece having a timepiece movement and comprising a time indicator hand which can indicate a first time indication when in a first position, and a second time indication when in a second position; two concentric fixed scales for displaying the first and the second time indication respectively; and a first time indication moving part and a second time indication moving part, positioned concentrically and connected to the timepiece movement so as to be driven with two different periodicities, wherein the timepiece movement includes a first cam which is fixed to the first time indication moving part and which is shaped to shift the time indicator hand to the first position, a second cam which is coaxial with the first cam is fixed to the time indicator hand and is rotatable with respect to the first cam, and which is shaped to shift the time indicator hand to the second position, a lever mounted pivotably on the second time indication moving part, actuating means for making the lever engage with the second cam in order to shift the time indication hand to the second position, and resilient return means engaged with the first cam to return the time indicator hand to the first position as soon as the lever ceases to engage with the second cam.