| 摘要 |
A watch chain (200) is disclosed. The watch chain (200) comprises a pin groove (51) formed at a spaced inner surface with a certain depth; a plurality of outer connection pieces (50) which have through holes (52) passing through the inner side of the pin groove (51) in the direction of the back surface; a plurality of central connection pieces (60) which have pin holes (61) at spaced portion with the left and right sides of the same being communicated; a connection pin (70) which passes through the pin hole (61) of the central connection piece (60) and is engaged at the pin groove (51) of the outer connection piece (50) of which both ends are connected with both sides of the central connection piece (60) and with a screw hole (71) being formed at both sides of the connection pin (70); and a screw (80) which is engaged at the screw hole (71) of the connection pin (70) through the through hole, wherein the screw (80) is engaged at the screw hole (71) of the connection pin (70) through the through hole (52) formed at the back surface of the outer connection piece (50).
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