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: A watchcase and watchframe suitable for mating and unmating one with the other by the use of a sealing means suitable for slidably translating the case within the frame and providing a substantially contiguous fit of the case within the frame.

Abstract: A watch is described having a case made of an alloy or of a metal compound, e.g. stainless steel, which provides an integral bottom-plate structure. The case consists of a stack of plates. The two outermost plates form a back and a bezel, bearing the watch glass, respectively. The remaining plates are formed with openings that together define in the case housings for accommodating components of the watch.

Abstract: A watch protector has a guard member extending across the face of the watch and two ring members, each attached at an end of the guard member. Each ring member has a cross-piece extending between opposite sides of the ring member for dividing the ring member into two openings, one closer to the guard member, and the other more distant from the guard member. At least one of the openings of each ring member receive portions of the watch band. The guard member having a vertical dimension extending upward from the face of the watch greater than the vertical dimension of the ring members when the ring members are aligned with the guard member for added protection.

Abstract: A watch case is described made of metal or metal compound, comprising a back, a middle and a bezel. The case is made up of a stack of plates with one plate forming the back cover and the others being formed with openings and forming the middle and the bezel.

Abstract: A time piece such as a pocket or wrist watch having a large central opening formed therethrough which causes the watch to assume a toroidal configuration. Various inserts, made complimentary respective to the central opening, are supported within the central opening. The artistic design placed on either face of the insert admits a large selection of unique and personalized material to be readily available to the individual that wears the watch.

Abstract: The invention relates to a wrist watch comprising a watch case (1) made of two parts (7, 8) fixed the one to the other and each forming one of the faces of the reversible watch. This case (1) is rotatively mounted along its six o'clock-noon axis on two bars (2, 3) each receiving one end of the bracelet (4). The case (1) comprises two lateral covers (5, 6) hinged at one of their ends on the case (1) covering in service position the lateral edges of the watch case.

Abstract: A watch case structure including a plate member fixed on the inner periphery of the upper part of a caseband and provided with an opening; a bezel fixed along the rim of the opening in the plate member; and an upper glass fixed on the inner periphery of the upper part of said bezel. The plate member can be made from metal or glass and if made from glass, part of the display can be provided thereunder.

Abstract: A toroidal time piece for indicating the time of day. The toroidal time piece comprises a body having opposed faces with there being a relatively large window formed through the body. Each of the opposed faces has a boundary which extends about and defines the configuration of the window and the configuration of a peripheral edge of the body. The body and the window take on various different configurations to impart different artistic appearances into the time piece.

Abstract: An improved wrist watch comprises a watch case having display and/or control components on both the top and the bottom faces of the watch case. Means are provided for the turning of the watch case to access either face and the components mounted thereon.

Abstract: An underwater instrument for the combined reading of immersion time and depth, and decompression time, wherein a depthometer, a clock device and decompression tables are mounted in mutually adjacent positions on a single support element.

Abstract: In watches to be worn on the body, the support member such as a wrist strap or neck band often is secured to the watch by means of a connecting member at a distance from the periphery of the watch casing. Generally tongue portions are formed on the watch casing and the connecting members fitted thereto and secured against movement in a direction opposite to the fitting direction by complex means such as screw and springs. In the improved watch casing of the invention, tongue portions (1a) are formed on the casing shell (1). The connecting members (4) which can be fitted from above engage into recesses in the tongue portions and are thereby secured in position transversely with respect to the direction of fitting.

Abstract: The watch case contains a crystal (1) and a casing (3), on an upper peripheral surface (2) of which the crystal (1) is detachably mounted by means of connecting members or straps (10). These connecting members may consist of a U-shaped clamps (10) having arms (11, 12) to which the edges of the crystal (1) and the casing (3) are tightened and which are capable of being set in place by being laterally engaged on the edges of the case.

Abstract: The bottom of the watertight wrist-watch casing is composed of a metallic piece (1) having its edges (2) bent up at right angles, and of a thin elastomer layer (3) lining the inner face of piece (1), to which it strongly adheres by means of a metal/elastomer junction. This bottom is secured to the caseband (9) by means of screws (24) which cause the bottom edges (2) to bear against the caseband (9), thereby pressing the thicker periphery of layer 3 against the caseband (9), to form a tight seal between the bottom and the caseband.The layer (3) is molded with two projections (6) serving as a substitute for the conventional case screws, and with four pillars (7) which hold the dial (18) in abutting engagement with the bottom of a lodging (17).

Abstract: A wrist watch, particularly a water-tight wrist watch, has upper and lower housing parts, a watch mechanism received in the lower housing part, a watch glass, a dial member, a spacer member, and an elastic element in the lower housing part arranged so that the upper housing part presses the watch mechanism via the watch glass, the spacer member and the dial member against the elastic element. The upper housing part has a collar extending over the spacer member and lying on a step portion of the watch glass.

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.

Abstract: The casing comprises a body and two glasses one of which plays the role of the bottom. These two glasses are pressed against the body by eight clamps having the shape of stirrups overlapping the horns of the attachment elements of the wristlet. Each pair of clamps is traversed by two screws, one engaged from above, the other one engaged from underneath ensuring the tightening. Clamps are provided with shoulders by means of which they bear on bevels on the two glasses.

Abstract: A structure for coupling a back cover with a case band in a wrist watch which comprises a case band having a long groove on the outer wall of a band attaching portion, a spring member being fitted in said long groove of the case band so as to outwardly project a protruded portion of said spring member and a part thereof being fixed to said case band, a back cover having a side wall with a long hole bored at the position corresponding to that of said spring member, and an elastic member for energizing and engaging said back cover with said case band along the axial direction thereof so as to cover a module. According to this structure, a compact, thin and highly waterproof wrist watch can be assembled, while disassembly thereof can be effected by merely pushing a portion of said spring member protruded from said long hole thereinto.

Abstract: A wrist watch having healthful and remedical effects. The wrist watch is composed of a digital watch body and a watch band which is attached to the watch body, and at least one of the watch body and watch band is magnetized. The magnetization is done by making the component parts of a magnetic material or by inlaying a plurality of magnetic substances into the component parts.

Abstract: Waterproofing of a watchcase is achieved by a sealing ring disposed between the periphery of the watch glass and a bezel portion of the case and confined between the glass holder ring on which the watch glass rests and an inturned lip portion of the bezel which retains the watch glass. By being disposed between the periphery of the watch glass and the bezel, the sealing ring is concealed from view by the inturned lip portion of the bezel and a more attractive watch is thereby achieved. A second sealing ring is provided between the bezel portion of the case and the case back to provide a seal therebetween.

Abstract: A sealed, shaped watch-case has a rim formed with a rectangular interior defined by a wall in which a annular groove is formed around the rim interior. The watch movement is supported in the rim by an elastically compressible retaining ring held in compression axially of the case by a circular, annular retaining part formed with radially outwardly extending projections. These projections are insertable into the rim by disposing them at corners of its rectangular interior until they are level with the groove so that rotation of the retaining part locates them in the groove to lock the retaining part in position. The case also has a base welded to an annular frame which is an interference push fit on the retaining part.

Abstract: A timepiece case having an open back, and a case back cover for closing the back of the timepiece. A ring is attached to the back cover for projecting into the timepiece case when the back cover is in position covering the open back of the timepiece case. The back cover ring is dimensioned to fit snugly within the timepiece case and has an internal diameter sufficient to clear a timepiece movement as the back cover is attached to and removed from the timepiece case body. A timepiece movement holding ring of resilient material is dimensioned to fit snugly within the timepiece case for positioning and holding a timepiece movement therein. The holding ring has an opening dimensioned to receive and snugly hold in position a timepiece movement, and the holding ring has an upper peripheral surface for supporting a peripheral flange of the timepiece movement and for holding a face of the timepiece movement against a front of the timepiece case.