Sympathetic timepiece assembly

A method for reference time setting of a sympathetic watch (200) by a sympathetic clock (100), with which said watch (200) forms a sympathetic assembly (1000) including a connection mechanism including at least two distinct transmission lines between said clock (100) and said watch (200) when said watch (200) is deposited in a receptacle (150) included in said clock (100), in a transfer position, said watch (200) including at least one resonator (10), and a display gear train and a finishing gear train, and at least one stop mechanism (20) arranged to stop the operation of said resonator (10) or else both a said stop mechanism (20) and a coupling mechanism allowing to separate the display from the finishing gear train, and said watch (200) including at least one hour display (4) and one minute display (5), a reference position of which will be defined, wherein the time-setting is executed only at request by action of a user on a control means (300), or automatically periodically controlled by said clock (100), and wherein, to perform said time setting, said clock (100) drives said displays (4;

• 5) of the watch backwards, in the counter-clockwise direction, with a sufficiently long stroke to ensure that said displays (4;
• 5) pass through said reference position;
• or wherein said clock controls means of said watch (200) which are disposed so as to ensure the displacement of the displays to said reference position by means of heart-pieces.