Abstract: A device for displaying an item, wherein the item being displayed can be selectively changed. The device includes an annular body with an inside circumferential surface having an associated mounting arrangement including a shoulder, a groove and a snap ring. A changeable item for display is generally received in the annular body and held in place between the shoulder and the groove by positioning the snap ring into the groove. In some embodiments, the annular body may be adapted to be carried and used on a strap or band, generally in the manner a wristwatch is carried and used. In other embodiments, the annular body may be free-standing or adapted to be supported by a suitable support. The present invention may further include a cover hingedly attached to the annular body. In some embodiments, the cover may have generally similar characteristics as the annular body, it may interchangeably display other selected items, and/or it may include or display a watch face.

Abstract: The timepiece includes a stationary outer case (1) in which a pivoting inner case (10) is hinged in an inclined position via the action of a spring. The locking/unlocking mechanism is characterized in that it is formed by a mobile element of the external part that can be manipulated in the plane of the timepiece such as a rotating bezel (20) of the inner case (10) including a lug (22) that is engaged in a groove (2) of the outer case (1).

Abstract: To provide a timepiece in which it has been made possible to exchange an edge member, to which a glass has been fixed, without accompanying a case band. A wristwatch comprises an annular case band, a case back, an annular edge member, a glass, and a C-shaped spring member. A front side end part of the case band forming a fitting hole has an edge receiving face around the fitting hole and an engaging groove. The case back is detachably attached to a back side end part of the case band. The glass is fitted and fixed to an annular step part having been formed in the edge member. In the edge member there are provided a tubular part fitted to the fitting hole so as to be capable of being inserted and disengaged, and a cover part overlapping with the edge receiving face. In the tubular part there are provided an annular attaching groove opening to an inner periphery of the tubular part, and plural through-holes communicating with the annular attaching groove and opening to an outer periphery of the tubular part.

Abstract: Pocket watch comprising a middle, a movement accommodated in the middle, a crystal, a cover for protecting the crystal, a stem for setting the time of the movement, and a device for locking the cover. The locking device can be released by manipulating the stem to open the cover. A water-tight enclosure enables the movement to be accommodated and protected. The water-tight enclosure encloses the middle. The locking device is outside the water-tight enclosure. The stem passes through the water-tight enclosure through an aperture and a water-tight joint provided in the aperture. The water-tight enclosure includes a casing ring accommodated inside the watch-case.

Abstract: A watchcase comprises a case body, a back cover connected to the back of the case body and a bezel connected to the top of the case body. A support member is connected to either the back cover or the bezel and comprises an outwardly extending flange, and oppositely disposed beads extending outwardly from the flange. The beads are configured to coact with recesses which are oppositely disposed in the inner surface of the case body so as to be received therein upon insertion of first one bead in its respective recess followed by the displacement of the support member relative to the case body so as to temporarily dispose the beads in extreme positions with respect to the recesses, and the beads are maintained in their respective recesses upon the return displacement of the support member so as to move the beads from their extreme positions. The beads are normally biased out of their extreme positions when inserted in the recesses.

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.