Sympathetic timepiece assembly

A method for reference time setting of displays 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, or else a stop mechanism (20) arranged to stop the operation of said resonator (10), or else a coupling mechanism allowing to separate a display from the finishing gear train, or else both such a stop mechanism (20) and such a coupling mechanism, and said watch (200) including at least one hour display (4) and one minute display (5), a reference position of which is defined, said watch (200) including at least one power storage barrel, for power supplying at least one resonator (10), wherein use is made of one said watch (200) including a coupling mechanism (706) between a display gear train (705;

• 707;
• 708) and a finishing gear train (710), and including a hammer (701) movable between a coiled position where the hammer is retained by a pawl and tensioned by a spring, and an active position where said hammer (701) is arranged to rest on the periphery of a first hour heart cam (702) carried by an hour wheel (708) included in said watch (200), so as to constrain said first hour heart cam (702) in rotation to its smallest radius (200), and wherein a cycle including three phases is executed, a first phase during which, by a first displacement of an interface between said clock (100) and said watch (200), said coupling mechanism (706) is uncoupled by said interface which actuates the coupling mechanism to an uncoupled position, and wherein, after uncoupling a coupling-clutch (706), said interface releases said hammer (701), which returns by said first hour heart cam (702) the hour display (4), and, by the timer, the minute display (5) to said reference position, and a second phase where the position of said displays (4;
• 5) is maintained, for time setting, isolating or recoiling said hammer (701), and a third phase where, by a second displacement of said interface between said clock (100) and said watch (200), to reconnect said finishing gear train with said display gear train, said coupling mechanism (706) is coupled by said interface which actuates the coupling mechanism towards a coupled position and during which third phase it is possible to recoil said hammer (701) by said interface.