Patent Number: 6,295,250

Title: Time-setting mechanism for clock movement with perpetual julian date

Abstract: A time-setting mechanism for a clock movement with perpetual Julian date comprising a device for driving a date indicator including driving means for moving forward said indicator by one jump every twenty-four hours. The movement has an adjusting device for automatically moving said indicator by a number of steps taking into account months with 28, 29 or 30 days, said device comprising a rotary cam driven by at least one step every twenty-four hours, said cam having a profile for steering a sensor bringing about: the oscillating movement of a moving mechanism provided with a pawl system for moving forward the date indicator by the required additional number of adjusting steps; and for moving forward said cam by a number of steps equal to the number of said indicator adjusting steps so as to make it move one complete cycle per year.

Inventors: Ray; Claude (Montezillon, CH), Taillard; Christian (Les Fins, FR)

Assignee: Girard-Perregaux S.A.

International Classification: G04B 19/25 (20060101); G04B 19/00 (20060101); G04B 019/20 ()

Expiration Date: 09/25/2018