A mechanical connection device, in particular a mechanical connection device for a timepiece or a mechanical transmission device for a timepiece, includes a first part having a first area with at least a first micro-cavity; and a second part having a second area with at least a second micro-cavity, the first and second areas being in contact with one another in a mechanical connection configuration.

A zeroing device (200), including a first zeroing unit (71), which consists of a zeroing lever (12) having a zeroing lever arm (12a) and a zeroing lever latch (12b), wherein the zeroing lever latch (12b) has a first end (13) and a second end (14). The zeroing device is characterized by a second zeroing unit (72) that is arranged at an offset to the first zeroing unit (71) in a Z coordinate direction (Z) and is in operative connection with the first zeroing unit (71). The second zeroing unit (72) may also include a pendulum rod (31), a hinge support (34), and a joint rod (35), wherein the pendulum rod (31) is rotatably attached to a cam (33) and to the joint rod (35) and wherein the joint rod (35) is rotatably attached to the hinge support (34) and rests against an eccentric (36) of the zeroing lever (12).

A zeroing device (200), including a first zeroing unit (71), which consists of a zeroing lever (12) having a zeroing lever arm (12a) and a zeroing lever latch (12b), wherein the zeroing lever latch (12b) has a first end (13) and a second end (14).

The zeroing device is characterized by a second zeroing unit (72) that is arranged at an offset to the first zeroing unit (71) in a Z coordinate direction (Z) and is in operative connection with the first zeroing unit (71). The second zeroing unit (72) may also include a pendulum rod (31), a hinge support (34), and a joint rod (35), wherein the pendulum rod (31) is rotatably attached to a cam (33) and to the joint rod (35) and wherein the joint rod (35) is rotatably attached to the hinge support (34) and rests against an eccentric (36) of the zeroing lever (12).

A mechanical connection device, in particular a mechanical connection device for a timepiece or a mechanical transmission device for a timepiece, includes a first part having a first area with at least a first micro-cavity; and a second part having a second area with at least a second micro-cavity, the first and second areas being in contact with one another in a mechanical connection configuration.

The present disclosure relates to a watch mechanism having a first actuating device, a second actuating device, a first pivoting piece arranged to cooperate with the first actuating device and to pivot about a first axis perpendicular to a first principal plane, a second pivoting piece arranged to be connected to the first pivoting piece and to pivot about a second axis to a second main plane, a first flexible blade being connected to each pivoting piece, a mechanical pivot having a main axis offset in the first main plane and/or in the second main plane from the axis of rotation of the first pivoting piece and the second pivoting piece, the first pivoting piece and the second pivoting piece being mounted on said mechanical pivot, thereby preloading the first flexible blades.