Abstract: Watch case (1) closed by a crystal (3) and a back cover (2) delimiting with a casing ring (6), a space (9) for housing at least a movement (29), including a metal center (30) whose outer wall has a stair structure (31, 31a, 32, 32a, 33) complementary to the inner structure (21, 21a, 22, 22a, 23, 23a) of the cover (20) secured to said center (30) by means of at least two screws (14, 16) passing through it via holes (34, 36) to tighten clamps (15, 17) housed in radial hollows (25, 27) formed in a vertical wall (21a) of the cover (20), by compressing an elastomeric gasket (12) arranged between two horizontal surfaces (22, 32) of the stair structures, and whose thickness is sufficient to arrange clearances (41, 41a) at least between opposite surfaces respectively of the back cover (2) and the base (21) of the cover (20), and the vertical wall (31a) of the center (30) and the wall (21a) of the cover (20) joining the base (21).

Abstract: The bracelet is formed of decorative elements (10) mounted on the links (20) of a chain (20). Each decorative element (10) includes over a portion of its length a central rib (16) and two lateral edges (18) connecting the cap (13) and feet (17, 19) made as an overthickness on the bottom (15). Each link includes on either side of a slot (2) two coupling elements (21, 31) connected by a bridge (7) provided with a pin hole (9), each having a lateral arm (28, 38) provided with a pin hole (29, 39) and forming with the bridge (7) a complementary recess (23, 33) of an extension (24, 34) provided with a pin hole (25, 35) at the other end. The bending of one link with respect to the following one is limited by blocking means provided either at the opposite pin holes or at recesses and extensions.