Abstract: A watchcase (100) including a first bezel (1) and a second bezel (2) that are coaxial around the same axis (D), including a mechanism for rotationally bolting the second bezel (2) which is in a fixed axial position in the direction of the axis (D) and which is unbolted by axial pressure by a user, in the direction of the axis (D), on the first bezel (1) to unbolt the second bezel (2) and rotate it under the effect a rotational movement imparted by the user to the first bezel (1), this bolting mechanism including an annular spring (5) that is substantially circular around the axis (D) and which is in permanent contact with the first bezel (1), on one hand, and the second bezel (2) on the other hand. The invention also relates to a watch (1000) including such a case (100).

Abstract: A timepiece (100) including a middle (10), a detachable back (12) mounted on the middle (10), a movement (20) and casing elements (30) for rigidly holding the movement (20) in an inner volume (15) of the middle (10), having a first casing circle (35) pressing against a shoulder (16) formed in the middle (10); a second casing circle (34), the movement (20) being rigidly held between the first casing circle (35) and the second casing element (34) via a peripheral rib (21) of the horology movement (20), the first casing circle (35) and the second casing circle (34) being superimposed with no direct contact with each other; a clamping element (33), separate from the detachable back (12), in direct contact with the second casing circle (34).

Abstract: A watch (100) including a middle (10), a detachable back (12) mounted on the middle (10), and a movement (20) housed in an inner volume (15) of the middle (10). The watch also includes a dial (40), with a thickness (e3), having an upper face (41) visible to the user, the dial (40) being attached to a reinforcement piece (30) positioned under the dial (40), the reinforcement piece (30) including a peripheral annular shoulder (36) engaging with an annular shoulder (16) formed in the middle (10), the reinforcement piece (30) being attached to the middle (10) pressing against the annular shoulder (16) of the middle (10).