Abstract: Timepiece assembly (1) comprising a middle part (4) cooperating in abutment with a bottom plate (2) and a screw (6) for securing (5) this bottom plate (2) to this middle part (4), cooperating with an axis (D0) housing (7) of this plate (2), to press a flange (10) onto a first shoulder (8) of this plate (2) in proximity and on a second shoulder (9) of this middle part (4), and this first shoulder (8) is conical or spherical and/or this second shoulder (9) which is conical or spherical, cooperates with this flange (10) on at least two surfaces or points, in an assembled position wherein this plate (2) and this middle part (4) are assembled to each other and in the position wherein this screw (6) is completely screwed into this housing (7).

Abstract: A watch (100, 200, 300) is disclosed as including a case and a rotation module (106, 206, 306) with a longitudinal axis (L-L, N-N, P-P), in which the rotation module (106, 206, 306) is contained within the case and freely rotatable relative to the case about the longitudinal axis (L-L, N-N, P-P), the rotation module (106, 206, 306) including a number of movement parts (134, 234, 334), and, upon rotation of the rotation module (106, 206, 306) relative to the case, the movement parts (134, 234, 334) are each movable relative to the rotation module (106, 206, 306) and to-and-fro along a respective path (Lm1-Lm1, Lm2-Lm2, Lm3-Lm3, Lm4-Lm4, Nm1-Nm1, Nm2-Nm2, Nm3-Nm3, Nm4-Nm4, Pm1-Pm1, Pm2-Pm2, Pm3-Pm3, Pm4-Pm4).

Abstract: The invention relates to a watch case including a middle (2, 24, 34), one opening of which is closed by a bezel (8, 18, 28) and/or a crystal (1, 11, 21), or by a back (40). At least one of the elements for closing the opening is connected to the middle by a resilient metal member (3, 23, 33) having a recessed cross-section defined by the profile of a non-rectilinear wall having a constant thickness and the ends (3a, 3b) of which are connected to the periphery of said closing element (1, 11, 21, 18) of said middle (2, 24, 34), respectively. The profile of said non-rectilinear wall defines at least one annular fold having an orientation parallel to the plane of said opening, said fold being formed by a curvature, the arc of which defines an angle of between >90° and 180°, so as to impart to said closing member (1, 11, 21, 18) a freedom of movement relative to the plane of the opening.

Abstract: The middle part includes an inner metallic middle part (10) and an outer middle part (20) made of a natural or synthetic mineral material, such as ceramics. The inner middle part (10) is itself made up of a top ring (12) and a bottom ring (14), each ring including a radial, peripheral extension (13, 15), whose opposite shoulders can mechanically lock the outer middle part (20), for example by screwing the two rings (12, 14) one inside the other.

Abstract: This watch case comprises a protective casing surrounded by a middle (5) and a bezel (9). The protective casing includes a glass (3), a side wall (2) and a bottom (1). A planar peripheral surface extending along the entire edge of the inner face of the glass is in contact with a similar bearing surface on the side wall (2), at least part of which forms the width of the cross section of a pressure resistant structure having parallel lateral faces (SR) perpendicular to the bearing surface, and which extends without a gap as far as the bottom (1) of the casing. The components of the casing are secured and sealed with at least one annular seal (4) surrounding the lateral face of the glass (3) and the outer lateral face of the side wall (2) of the casing, and this seal is clamped.

Abstract: The middle part includes an inner metallic middle part (10) and an outer middle part (20) made of a natural or synthetic mineral material, such as ceramics. The inner middle part (10) is itself made up of a top ring (12) and a bottom ring (14), each ring including a radial, peripheral extension (13, 15), whose opposite shoulders can mechanically lock the outer middle part (20), for example by screwing the two rings (12, 14) one inside the other.

Abstract: To provide a timepiece in which it is possible to promote an edge thinning of an edge member without impairing an exchangeability of a gasket between the edge member to which a glass has been fixed and a case band, and a selectivity of a fixation means of the glass to the edge member. In a case band of an armor case in which a timepiece movement with a dial has been built in, there is provided an inner periphery convex part forming a fit hole while protruding to a case band inside. In an annular edge member which is overlapped to a front side of the case band and to which a glass has been fixed, there are provided a tubular fit part fitted to a fit hole, and a dial cover site covering a peripheral part surface of the dial. An annular seal gasket made of an elastic material is nipped, in an outside than the fit hole, between the edge member and the case band.

Abstract: A thin timepiece having a module stably fixed therein has a case integrated with a wrist band and a case back, the case having an opening portion on a front surface side thereof, a module having a housing formed of a resin and a timepiece movement held by the housing, the module being removable retained in the opening portion of the case, and a cover glass for covering the opening portion of the case. The housing has at least one two-sided supporting beam integrally formed in a side surface therof and being deformable in a planar direction of the housing, and a fitting projection protruding from each two-side suporting beam, and the module is fixed in the opening portion of the case by inserting the fitting projection into a corresponding engaging recess formed in an inner side face of the case.

Abstract: The watch according to the invention includes a movement (2) on which a dial (4) is assembled and which is mounted in a casing ring (12) itself mounted in a case (14) including a crystal (16) secured to a bezel (20), a middle part (24) and a back cover (22). According to the invention, the case (4) includes an inner tubular part (38) at least partially surrounding the casing ring (12) and itself surrounded by the middle part (24) and snap fitting assembling means (64, 76) for connecting the back cover (22) and the bezel (20) via the inner tubular part (38). Moreover, this tubular part is designed to allow the casing ring (12) and the middle part (24) to be angularly positioned with respect to each other. In order to do this, it can have an axial slot (98) open towards the back cover (22), which an external projecting portion (94) of the casing ring and an internal projecting portion (96) of the middle part penetrate.

Abstract: There is described a stacked assembly of a plurality of modules (32, 33, 36) and a timepiece (1) including such an assembly forming a movement (3). The modules are mounted via assembly orifices on a plurality of mounting pins (24) and assembled by compression between first and second planes (23, 25). In order to absorb variations in thickness (e) in a first element (34) of the assembly, the latter includes a plurality of tube-shaped intermediate elements, called stepped tubes (8), mounted respectively on the mounting pins, each stepped tube being inserted in an assembly orifice (34a) of the first element.

Abstract: The present invention concerns a device for securing a back cover (6) to a middle part (28) of a watchcase (26), the back cover (6) having a screw thread (8) on its outer periphery, the device being characterized in that it includes an intermediate element (1) including a resilient blocking element (4) and a metal element (2) concentric to the resilient blocking element (4), this intermediate assembly being forcibly driven into the lower part of the middle part (28) of the watch (26), and the back cover (6) being screwed onto the metal element (2) so that, when the back cover (6) is completely screwed onto the metal element (2), the metal element (2) can be pivoted by sliding on the resilient blocking element (4) to a stop point from which the resilient blocking element (4) can in turn pivot by sliding on the middle part (28) of the watch (26), allowing the alignment of the back cover (6) to be adjusted with respect to the vertical 12 o'clock-6 o'clock axis of the watch (26).

Abstract: The watch according to the invention includes a movement (2) on which a dial (4) is assembled and which is mounted in a casing ring (12) itself mounted in a case (14) including a crystal (16) secured to a bezel (20), a middle part (24) and a back cover (22). According to the invention, the case (4) includes an inner tubular part (38) at least partially surrounding the casing ring (12) and itself surrounded by the middle part (24) and snap fitting assembling means (64, 76) for connecting the back cover (22) and the bezel (20) via the inner tubular part (38). Moreover, this tubular part is designed to allow the casing ring (12) and the middle part (24) to be angularly positioned with respect to each other. In order to do this, it can have an axial slot (98) open towards the back cover (22), which an external projecting portion (94) of the casing ring and an internal projecting portion (96) of the middle part penetrate.

Abstract: The method for assembling and fixing a casing ring (3) in a watch case (6) uses a ring made of plastically deformable material fitted with means (60, 70) forming a single piece with the ring and capable of positioning it with respect to the case. The ring is introduced into the case, which causes said positioning means to be deformed plastically. The introduction is interrupted when the ring occupies a determined position with respect to the case.

Abstract: The piece of jewelry protected by a hard metal shielding may consist of a metallic watchband composed of elements jointed to each other. In this case each one of said elements comprises a body member 61 of a material suitable for machining, such as stainless steel, and a plate 64 of sintered hard metal which is secured to body member 61 by means of plugs 65 welded against the back side of plate 64 and riveted to body member 61. The upper surface of the watchband elements is thus protected against injuries which contacts with foreign bodies could produce. Since that face of the watchband elements is practically the only one which is visible, when the watch is carried, the watchband will keep its original appearance during all the time it will be carried.

Abstract: A back cover fixing structure for a wristwatch, which comprises a case band having a plurality of inwardly projecting portions provided on an inner wall of the case band and screw holes provided in respective ones of the inwardly projecting portions, a back cover having a plurality of through-holes, and a plurality of screws set in the screw holes of the case band through the through-holes of the back cover for fixing the back cover to the case band.