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US 4,391,533 AGranted
Back cover fixing structure for wristwatch
AssigneeCitizen Watch Co., Ltd.
InventorMasahiko Waki
Life of this patent
Estimating the term…
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.
Claims5
A back cover fixing structure for a wristwatch comprising:
- a case band having an inner wall and an outer wall and having a plurality of projecting portions on said inner wall, in which said projecting portions project inwardly toward a center of said case band, each of said inwardly projecting portions having a screw hole;
- a back cover having a plurality of throughholes provided at positions corresponding to the screw holes of said inwardly projecting portions;
- and
- a plurality of screws set in the screw holes of said inwardly projecting portions through the throughholes of said back cover for fixing said back cover to said case band.
1 more element
Dependencies are inferred from the claim text.