Abstract: A Dewar device (1) for mechanical and/or functional components (2) of a watch (3), the device (1) being provided with a bracelet and a casing (4) including an enclosure (5) in which a case (6) of the watch (3) is capable of being arranged and at least one fastening device (7) fastening the case (6) of the watch (3) inside the enclosure (5) of the casing (4) while keeping it away from the set of elements (10a, 10b, 10c) of the casing (4) defining this enclosure (5), the set (10a, 10b, 10c) including at least one transparent external element (10a) made of a transparent ceramic material, in particular a transparent polycrystalline ceramic material.

Abstract: A timepiece striking mechanism including a mechanism for controlling a hammer arranged to strike a resonant component in an impact position, and movable within a working zone between a recoil and rest position and this impact position, this mechanism includes a device for limiting recoil of the hammer after impact, formed either by eddy current braking means arranged to brake the hammer when it enters a back zone, connected and contiguous to the working zone and opposite the impact position, and/or by mechanical friction and/or elastic return means integral with the hammer or an anchor-piece integral with the hammer, and arranged for friction and/or abutting engagement with a moving braking component or a surface of a fixed part of the striking mechanism.

Abstract: An electronic timepiece includes an exterior case, one or more circuits housed in the exterior case, wherein the one or more circuits are configured to process a signal in a radio wave having a predetermined frequency, and a bezel disposed on an outer side of the exterior case, wherein the bezel comprises a metal portion configured to resonate with the radio wave, and wherein the metal portion of the bezel is electrically connected to the one or more circuits to transmit the signal in the radio wave received by the metal portion of the bezel to the one or more circuits. A method for assembling the electronic timepiece is further provided.

Abstract: A case includes a case main body, an exterior cover formed of a synthetic resin and mounted on an upper portion and an outer circumferential portion of the case main body to cover the upper portion and the outer circumferential portion, and a reinforcement member formed of a synthetic resin harder than the exterior cover and embedded in an inner surface of the exterior cover to prevent an inner circumferential side of the exterior cover from being bent back relative to the case main body.

Abstract: A timepiece includes an exterior case having a protruding section, a case back, a dial receiving ring, a dial, a dial ring, and a casing ring disposed around the outer circumference of the dial receiving ring. The casing ring includes a casing-ring-side contact section that comes into contact with the inner circumferential surface of the exterior case, a front-surface-side contact section that comes into contact with the protruding section, a casing ring spring section that is formed to be elastically deformable in the thickness direction of the timepiece and comes into contact with the case back, and a support section that protrudes from the inner circumferential surface of the casing ring.

Abstract: A method and device for orienting a timepiece component on both ends of which two magnetic/electrostatic fields each attract it onto a pole piece, with an unbalance in the intensity of the fields around the component, in order to create a differential in the forces thereon and to press one of the ends onto a contact surface of one of the pole pieces, and to hold the other end at a distance from the other pole piece. A magnetic/electrostatic pivot includes such a component with two ends. It includes a guide device with surfaces of two pole pieces each attracted by a magnetic/electrostatic field transmitted by one of the ends, or generating a magnetic/electrostatic field attracting one of the ends, the magnetic/electrostatic forces exerted on the two ends are of different intensity, in order to attract only one end into contact with only one of the pole piece surfaces.

Abstract: Device for detecting and synchronising the position of at least one first wheel (16) of a timepiece mechanism (1) for an electronic analogue watch, wherein this first wheel (16) extends in one plane, the detection and synchronisation device (30) comprises at least one light source (32) emitting a light beam (34) and at least one light detection system (36), and this detection and synchronisation device is characterised in that a first light-reflecting element (40) projects from one of the upper or lower surfaces of the first wheel (16) of the timepiece mechanism (1), wherein the light source (32) and the light detection system (36) are arranged so that in a determined position of the first wheel (16) of the timepiece mechanism (1), the light beam (34) emitted by the light source (32) is reflected by the first reflective element (40) in the direction of the light detection system (36).

Abstract: A shock absorber bearing for an arbor of a timepiece wheel set. The arbor includes a pivot-shank extended by a pivot. The bearing includes a support including a recess for receiving a pivot system into which the pivot-shank is inserted. The pivot system is arranged to absorb, at least in part, shocks experienced by the timepiece wheel set and is formed of a single piece made of an at least partially amorphous metal alloy.

Abstract: A damping member includes a body provided between a device case and a module encased within the case and damping an external shock applied on the case. The body includes a holding member having upper and side surfaces and disposed between an inner peripheral surface of the case and an outer peripheral surface of the module, a first shock absorbing member covering a predetermined part of the upper and side surfaces of the holding member, deformed elastically when the shock is applied on the case, and elastically absorbing the shock, and a second shock absorbing member covering the other part of the holding member, getting the shock earlier than the first shock absorbing member when the shock is applied on the case, each changing its volume in accordance with the shock, and absorbing and escaping the shock. A damping structure used for an electronic device uses the damping member.

Abstract: A wristwatch includes a case formed of a glass and a back lid attached to a case body that has an annular receiving portion on an inner peripheral surface thereof. An inner frame is integrated into the case body by engaging an engaging portion of the inner frame with the annular receiving portion from the side of the back lid. A movement is supported inside the inner frame, and a plurality of resilient bodies are attached to the inner frame and project from the outer peripheral surface of the inner frame. The resilient bodies are clamped between the inner peripheral surface of the case body and the outer peripheral surface of the inner frame, and are resiliently deformed so as to match a gap between the inner peripheral surface and the outer peripheral surface.

Abstract: A shock absorbing member for a wristwatch including a wristwatch case whose side portions are provided with a pair of bands and an operation member positioned avoiding the pair of bands, and back surface has a case back attached thereto. This shock absorbing member is made of a flexible resin, and includes a peripheral side portion that surrounds the wristwatch case and projects further outward than a top surface of the wristwatch case, and a bottom portion to which the case back is attached. In addition, the peripheral side portion is provided with band holes into which the pair of bands are inserted and an operation hole corresponding to the operation member.

Abstract: The present invention relates to a buffer member, a shock buffering structure of an electronic device, and an electronic device. A buffer member interposed between a wristwatch case and a watch module therein is composed of a viscoelastic body which, when the wristwatch case receives shock, reduces shock to be transmitted to the watch module by changing its shape while converting the kinetic energy to heat energy, and quickly reduces elastic force on the watch module by reducing the conversion of the kinetic energy to elastic energy accompanying the shape change. The viscoelastic body includes a first viscoelastic body section formed to cover the top and side surfaces of the module, a second viscoelastic body section arranged in predetermined portions of the first viscoelastic body section, and a third viscoelastic body section arranged along the inner peripheral edge of the top surface of the first viscoelastic body section.

Abstract: An arrangement for protecting a watch movement from shocks and vibrations includes shock absorbers for mounting the watch movement within the case. The shock absorber includes a plurality of independent portions for absorbing the energy from shocks and vibrations in different portions of the frequency spectrum. The rigidity of the shocks absorbers can be adjusted from outside the watch. The watch case is made up of a network of interconnected tubes and watertightening plates without mechanical functions connected to the tubes.

Abstract: The present invention relates to a buffer member, a shock buffering structure of an electronic device, and an electronic device. A buffer member interposed between a wristwatch case and a watch module therein is composed of a viscoelastic body which, when the wristwatch case receives shock, reduces shock to be transmitted to the watch module by changing its shape while converting the kinetic energy to heat energy, and quickly reduces elastic force on the watch module by reducing the conversion of the kinetic energy to elastic energy accompanying the shape change. The viscoelastic body includes a first viscoelastic body section formed to cover the top and side surfaces of the module, a second viscoelastic body section arranged in predetermined portions of the first viscoelastic body section, and a third viscoelastic body section arranged along the inner peripheral edge of the top surface of the first viscoelastic body section.

Abstract: A wristwatch includes a case formed of a glass and a back lid attached to a case body that has an annular receiving portion on an inner peripheral surface thereof. An inner frame is integrated into the case body by engaging an engaging portion of the inner frame with the annular receiving portion from the side of the back lid. A movement is supported inside the inner frame, and a plurality of resilient bodies are attached to the inner frame and project from the outer peripheral surface of the inner frame. The resilient bodies are clamped between the inner peripheral surface of the case body and the outer peripheral surface of the inner frame, and are resiliently deformed so as to match a gap between the inner peripheral surface and the outer peripheral surface.

Abstract: Anti-shock device (10) for the protection of a timepiece component (1) pivotally mounted between a first (2) and a second (3) end in a chamber (1A). Said component (1) is freely mounted in said chamber (1A) between pole pieces (4, 6), which are distinct from said component (1) and located in proximity to said chamber (1A) and the device (10) includes means for attracting said first end (2) held in abutment on only the first pole piece (4), and means for attracting said second end (2) towards a second pole piece (6), said attraction means of said first end (2) and said second end (3), which are of magnetic and/or electrostatic nature, can move along an axial direction (D) between stop members.

Abstract: A shock absorbing member for a wristwatch including a wristwatch case whose side portions are provided with a pair of bands and an operation member positioned avoiding the pair of bands, and back surface has a case back attached thereto. This shock absorbing member is made of a flexible resin, and includes a peripheral side portion that surrounds the wristwatch case and projects further outward than a top surface of the wristwatch case, and a bottom portion to which the case back is attached. In addition, the peripheral side portion is provided with band holes into which the pair of bands are inserted and an operation hole corresponding to the operation member. Accordingly, even when a strong shock of falling from a high place or the like is received, the shock is unfailingly absorbed.

Abstract: An arrangement for protecting a watch movement from shocks and vibrations comprises shock absorbers (2) for mounting the watch movement within the case (10). The shock absorber comprises a plurality of independent portions (21, 22) adapted for absorbing the energy from shocks and vibrations in different portions of the frequency spectrum. The rigidity of the shocks absorbers can be adjusted from outside the watch. The watch case is made up of a network of interconnected tubes and watertightening plates without mechanical functions connected to the tubes.

Abstract: Timepiece (1) including a case (11) in which systems (3, 5, 7, 9) are mounted for operating the timepiece, controlled by control members (15, 21, 19) that project from the case, at least one of the control members (15, 19, 21) cooperating with an anti-shock device (33, 35) mounted in the case (11) and including a main component (91, 111), which is moveably mounted relative to the case (11), characterized in that the main component (91, 111) includes a permanent mechanical connection with the part (63, 41) of each system (25, 23) to which the at least one control member is attached, which enables the component to be reversibly uncoupled from the at least one control member (15, 19, 21) when a force greater than a predetermined threshold is exerted on the at least one control member and in that the mechanical connection is of the sliding type, and includes a jumper spring (95, 115) elastically mounted relative to a pin (96, 116).

Abstract: A watch having a middle part including a top face arranged for receiving a polygonal bezel made of a first material. The corners of the bezel are truncated and the middle part is fitted with angular elements made of a second material, secured to the top face thereof, and arranged so as to be substituted for the truncated corners of the bezel when the latter is mounted on the middle part.

Abstract: A damping device, more particularly for a watchcase, includes a case (1) the back (7) of which has an extension provided with a groove (13) holding a gasket (14). The device further includes a support (2, 3) the lower segment (2) of which has a compression chamber (18) cooperating with the extension of the back of case (1), this extension being able to move axially, and in air-tight fashion, in this chamber (18). This lower segment (2) of the support is linked to a ring (3) against which case (1) leans in its rest position.

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: There is disposed a middle comprising a metallic inner middle (20) in which a movement (30) is housed, and a metallic outer middle (21) covering at least a part of the inner middle, and an elastic shock absorber (35) disposed between the inner middle and the outer middle.

Abstract: A timepiece including a case (24) provided with a back cover (28) and a middle part (26), a movement (30) mounted in the casing ring (32), a dial (34) mounted above the ring (32) and a crystal (36) mounted above the dial (34), said crystal (36) being provided with an annular collar (70) surrounding the flank (64) of the dial (34), characterised in that the casing ring (32) includes means (38) arranged to remove all the play inherent in the dimensional tolerances of the dial (34), the ring (32) and the back cover (28) of the case (24), these means (38) on which the collar (70) of the crystal (36) is supported being arranged at the upper end of the ring (32), along the outer circumference (86) thereof.

Abstract: A rotatable indicator ring for a wristwatch is an assembly of a first ring of hard resin material rotatably mounted and retained ont he watch bezel, and a soft elastomeric second ring extending beyond and locked to the first ring. The first ring has decorative or functional indicia and the second ring has a frictional surface facilitating turning the assembly and protecting the watch from impact and shock.

Abstract: Shock absorbing members are attached to an outer rim of a back surface of a wristwatch case body at 6- and 12-o'clock portions thereof, and they extend outward and curve downward. Each of the shock absorbing members has rising portions extending from its both side ends and which are freely swingably attached to the wristwatch case body to a circumferential surface of the wristwatch case body. In addition, a part of a front surface and the circumferential surface of the wristwatch case body are covered by a first cover member made of soft synthetic resin, and the first cover is partly covered by a metal-made second cover member. When shock is applied to the front and circumferential surfaces of the wristwatch case body, the shock is reduced or absorbed by the rising portions of the shock absorbing members. When shock is applied to the back surface of the case body, the shock is reduced or absorbed by the shock absorbing member.

Abstract: A bracelet type wrist watch composed of a curved body having a watch embedded therein, and a coil spring covering said curved body, thus presenting a neat appearance as an ornamental ring when worn around the wrist.

Abstract: The watch case comprising a middle (2) containing a lining (4) and a back (9) detachably mounted in a lower opening of the middle by means of a pressure device. A band (12) of synthetic material constituting a seal is formed on the periphery of the opening, that band being made in one piece with the lining and connected to it by portions of synthetic material crossing appropriate passages (15) of the middle. The side walls (16) of the opening are at least partially devoid of lining and they work together with opposite surfaces (17) of the back in order to assure pressure coupling of the latter and compression of the band (12).

Abstract: The glass (1) of the wrist-watch casing carries the ornamental pieces of the casing visible face surrounding the watch dial (17). These pieces comprise a frame (2) of precious or semi-precious material or a very thin metallized layer (31) deposited under the glass (1). The frame (2) is glued in an indissoluble and resistant manner under glass (1) and a spacing frame (3) is similarly glued under frame (2). The collar (6) of tapped sockets (5) is caught and glued in lodgings (7) provided in the face of frame (3) which is glued to frame (2). The unit composed of these pieces (2, 3, 5) and the glass (1) are removably secured to the caseband (8) by means of screws (9) crossing the caseband and engaging sockets (5) fitting borings (19) of the caseband.Under the metallized layer (31) a single spacing frame (25) of base metal is necessary and sockets (5) are welded in lodgings (26) of that frame.

Abstract: A structure for mounting a bezel in a watch case through a packing and for mounting a glass in the bezel through a packing. The watch case has an axially extending, inside engaging portion and an annular groove provided in a lower portion of the inside engaging portion, and the bezel has an inside annular groove. Each of the packings is adapted to be engaged with the corresponding annular groove.

Abstract: A rotary pendulum without time-keeping function, comprising an inertial body suspended from a clockwork housing of a preferably electronically driven timepiece through the intermediary of an elongate torsion spring, is periodically accelerated by the impact between a vane on the spring and radial camming teeth of an impeller wheel frictionally entrained on a horizontal seconds shaft of the timepiece via a spiral spring anchored to that shaft. The vane, near the upper end of the torsion spring, oscillates only through a half-cycle limited on the return swing by an abutment on the clockwork housing. The inertial body is secured to a latch member at the lower end of the torsion with the aid of a coupling ring on which a drag ring is rotatably mounted, the latter carrying a radial fin engageable with a fixed stop pin as well as with a peripheral lug on the coupling ring whereby the body can turn through almost two full revolutions before being positively arrested.

Abstract: An electronic timepiece comprising a module structure, the module structure comprising circuit board means including a plurality of circuit boards, display means having a display panel disposed on one surface and input terminals disposed on the other surface, resilient connector means having resiliency and conductivity, and an assembling casing for assembling the circuit board means, the display means and the resilient connector means. The resilient connector means affords the electric interconnection of said plurality of circuit boards and said display means and prevents damage of the module structure by shocks.

Abstract: A solar battery powered electronic timepiece of the type wherein a watch glass and a base plate supporting a solar battery are secured in an annular recess in a watch case. The base plate is positioned on a bottom surface of the recess and secured in position by a resilient packing which is preferably made from a resin material. The packing extends around the base plate and has a portion which overlines the outer periphery of the base plate and on which is positioned the watch glass. Another portion of the packing extends between the outer periphery of the watch glass and a side wall of the recess to secure the watch glass in position. A structure of this type is particularly suitable for securing a base plate of a material such as epoxy resin to which fastening legs cannot easily be attached.

Abstract: A fixing structure of a back cover for watches without requirement of any jig to attach a back cover to a watch casing. The fixing structure is disclosed which comprises a watch movement, an outer casing for accomodating said watch movement therein and provided with an opening at the lower portion thereof, a back cover engaged with said outer casing, a first flange formed at the side of said movement on said opening and being shorter than the outer diameter of said back cover, a second flange formed at the opposite side of the movement on the opening and being longer than the outer diameter of said back cover, and the diameter of the opening in said second flange being shorter than the outer diameter of said back cover, a peripheral groove formed between both said first and second flanges, and a flexible packing attached to said peripheral groove, whereby said back cover is attached to the inside of said flexible packing from the direction of said first flange.

Abstract: An improved shock absorber for a watch movement and a method of making the same. The watch has a molded casing and a movement with a molded baseplate. A plurality of shock absorbers permanently mount the movement in the casing. Each shock absorber has a first portion molded in the watch casing, a second portion molded in baseplate of the watch movement, and an elastically deformable shock absorber connecting portion extending between the first portion and the second portion free of the casing and the baseplate. The method includes molding the first portion in the casing and molding the second portion in the baseplate with the connecting portion free of the baseplate and casing and the baseplate and casing free from one another.