On-demand time zone displayed on the main hand of a timepiece

Abstract

The invention concerns a mechanism (100) for displaying, on demand, the time in a time zone, on the hands of a timepiece. It is characterized in that it includes: two memory wheels (30), each including a heart-piece (40) that pivots relative to a toothed wheel (31) between indexing positions (34) thereon, with which it cooperates via a finger-piece (41) radially returned to said positions by a spring (43), support means (50), which, between two actions by the user, connectably cooperates with a support surface (45) of a memory wheel (30) and is then disconnected from a support surface (45) ofthe other memory wheel (30), a differential gear (12) with a first input formed by a motion work wheel set, a second input formed by a crown (12A) of said differential gear (12) with which each memory wheel (30) meshes, and an output consisting of an hour hand (25). The invention concerns a timepiece incorporating a mechanism (100) of this type.

Description

technical field [0001] The present invention relates to a time zone mechanism arranged for displaying the time of a particular time zone on demand on the main hands of a timepiece comprising a movement with a moving train (going train) . [0002] The invention also relates to a timepiece incorporating a mechanism of this type. [0003] The invention relates to the field of watchmaking, in particular to the field of timepiece mechanisms which can be incorporated in timepieces, and more particularly to the specific field of timepiece displays. [0004] The present invention aims to solve the problem of displaying dual time zones on the main hands as required. Background technique [0005] The main problems with displaying as desired are firstly those related to the instantaneity of the desired result, and the problem is compounded when one wishes to display on the center hand of a timepiece, especially a watch. In fact, data stored in mechanical form must be available insta...

AI Technical Summary

Problems solved by technology

[0022] In order to solve the problem of displaying dual time zones as required and instantaneously on the main hands, while enabling the user to easily change the settings stored in the memory device by reprogramming in a very reliable and accurate manner, the present invention relates to a time zone mechanism , the time zone mechanism is arranged to display the time of a specific time zone as required on the main hands of a timepiece including a movement, characterized in that the time zone mechanism comprises: