Title: Four-sided water-resistant watch-case

Abstract: A four-sided, water-resistant watch-case comprising a caseband having a plane upper face, a crystal made of an inorganic material, an annular gasket inserted between the crystal and the caseband, and a bezel fastened to the caseband, partially covering the plane upper face, and holding the crystal in place, wherein the crystal comprises bevels along its periphery, and the bezel comprises a frame having inner faces in the form of ruled surfaces generated by lines perpendicular to said plane upper face, feet integral with the frame, projecting from the surface of the bezel facing the caseband and engaged in openings in the plane upper face, and claws projecting inwardly from opposite sides of the frame, the inner faces surrounding the gasket over at least part of its thickness, and the claws pressing upon the bevels in order to press the crystal against the gasket.

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Inventors: Klingenberg, Hans Ulrich (St. Niklaus near Merzligen, CH)

Application Number: 716710
Filing Date: 1976-08-23
Publication_date: 1978-02-28
Assignee: Century Time Limited (CH)
Primary Class(es): 368/292 968/301, 968/333, 968/DIG1
Other Classes:
US Patent Ref:

2514906	Jul, 1950	Steimann	58/90.
3729924	May, 1973	Aoki	58/90.
3910031	Oct, 1975	Keida	58/88.
4004410	Jan, 1977	Kawamata	58/90.

Other Refs: 215,448

Sep, 1941	CH

Primary Examiner: Miller, Jr., George H.
Assistant Examiner:
Attorney: Stevens, Davis, Miller & Mosher