| 摘要 |
PROBLEM TO BE SOLVED: To make easily maintainable the airtightness and waterproofness between a glass and a case, and to make the glass difficult to be broken against external force such as a shock of falling by facilitating to adjust the circular arc dimensions of respective parts when a circular arc shape is included is respective cross-sectional shapes in a case receiving surface of the glass and a glass receiving surface of the case by taking a cross section in the vertical direction to a plane of a wristwatch case of a conventional wristwatch case. SOLUTION: An elastic body having a fairly large thickness is arranged between the glass and the case in the height direction when taking the cross section in the vertical direction to the plane of the wristwatch case, and the glass and the case are fixed by an adhesive tape composed of the elastic body.
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