A clock device for timekeeping with an analog display and a time correction unit. The time correction unit uses encoder disks and rotary encoders to convert the angular position of the minute hand and the hour hand to a slave time code. The slave time code is compared to a master time code. A feedback circuit drives the minute hand and hour hand drive-motor(s) until the slave time code equals the master time code. The master time code can be generated from a digital clockworks, or it can be transmitted to the present invention from another clock. The invention can be extended to include a second hand and a time correction unit for a second hand.

A clock device for timekeeping with an analog display and a time correction unit. The time correction unit uses encoder disks and rotary encoders to convert the angular position of the minute hand and the hour hand to a slave time code. The slave time code is compared to a master time code. A feedback circuit drives the minute hand and hour hand drive-motor(s) until the slave time code equals the master time code. The master time code can be generated from a digital clockworks, or it can be transmitted to the present invention from another clock. The invention can be extended to include a second hand and a time correction unit for a second hand.

A method for permanent time setting of a sympathetic watch (200) by a sympathetic clock (100) forming a sympathetic assembly (1000) with the watch (200) which includes an hour display (4) and a minute display (5), a reference position of which will be defined, and the time-setting is executed only at request by action of a user on a control means (300) included in the clock (100) or the watch (200), or automatically periodically controlled by the clock (100), and, to perform the time setting, the clock (100) drives the displays (4; 5) of the watch backwards, in the counter-clockwise direction, with a sufficiently long stroke to ensure that the displays (4; 5) pass through the reference position; or the clock controls means of the watch (200) which are disposed so as to ensure the displacement of the displays to the reference position by means of heart-pieces.

The invention relates to a method for step-by-step time setting of a sympathetic watch (200) by a sympathetic clock (100), forming together a sympathetic assembly, where a predetermined time-setting step and a reference position of the displays (3; 4; 5) of the watch (200) are determined, and where the clock (100) performs the time setting of the watch (200) by positioning a transmission line in a position corresponding to the time setting, and by actuating, in successive steps, each of the value of the predetermined step, a transmission line capable of imparting to a time-setting mechanism internal to the watch (200) any movement necessary to precisely achieve the display of the current time.