A coupling mechanism for connecting a replaceable shaving cartridge of a shaving device to a handle of the shaving device, the coupling mechanism comprising: - a first connector of the replaceable shaving cartridge, - a second connector of the handle that is adapted to move along a substantially arc-shaped path with respect to the handle when at least one connector of the first connector and the second connector is pushed against the other connector, the second connector being adapted to mechanically engage with the first connector in the course of the motion of the second connector so as to reach an engaged position with the first connector, - a locking member of the handle that is adapted to lock the second connector when the latter is in the engaged position with the first connector, wherein the handle has an overall longitudinal shape and is symmetrical with respect to a longitudinal plane of symmetry, characterised by: the second connector being able to move, move along a substantially arc-shaped path lying in a plane that is parallel to the symmetry plane, under a pressure having an axial direction that is substantially aligned with the overall longitudinal shape of the handle, wherein when taken from a side view in the plane that is parallel to the plane of symmetry, the second connector has a substantially arcuate shape that is adapted to the shape of the substantially arcuate path that is followed by the second connector in the course of its motion, wherein the arc-shaped path is circular, wherein the motion of the second connector is a rotary motion about an axis of rotation that is located outside the handle and lies in a transverse plane that is perpendicular both to the symmetry plane of the handle and the axial direction and that crosses the second connector. - a first connector of the replaceable shaving cartridge, - a second connector of the handle that is adapted to move along a substantially arc-shaped path with respect to the handle when at least one connector of the first connector and the second connector is pushed against the other connector, the second connector being adapted to mechanically engage with the first connector in the course of the motion of the second connector so as to reach an engaged position with the first connector, - a locking member of the handle that is adapted to lock the second connector when the latter is in the engaged position with the first connector, wherein the handle has an overall longitudinal shape and is symmetrical with respect to a longitudinal plane of symmetry, characterised by: the second connector being able to move, move along a substantially arc-shaped path lying in a plane that is parallel to the symmetry plane, under a pressure having an axial direction that is substantially aligned with the overall longitudinal shape of the handle, wherein when taken from a side view in the plane that is parallel to the plane of symmetry, the second connector has a substantially arcuate shape that is adapted to the shape of the substantially arcuate path that is followed by the second connector in the course of its motion, wherein the arc-shaped path is circular, wherein the motion of the second connector is a rotary motion about an axis of rotation that is located outside the handle and lies in a transverse plane that is perpendicular both to the symmetry plane of the handle and the axial direction and that crosses the second connector.