Patent ID: 6711098
Filing Date: 2004-03-23
Classification: G04B

Abstract:
A date display device provided with a movement, for fitting to a timepiece, the display device comprising:a dial and hands driven by the movement and displaying the time; first and second display members, mounted to move in rotation on the movement, said members displaying respectively the units and the tens of the date; a drive and positioning mechanism controlled by the movement and arranged so as to cause one or the other or both of said display members to jump forward once a day, wherein said first member bears an index and wherein said mechanism and said first member are arranged so that when said mechanism causes said display of the units of the date to pass from a value n to n+1, n being an integer number comprised between 1 and 9, said first member travels, in a clockwise direction, through an angle equal to 30Â°, and wherein when n is equal to 1, said index is located in a position corresponding to a position which an hour hand would occupy when it is one o'clock.