| 摘要 |
PROBLEM TO BE SOLVED: To provide a device capable of changing a wristwatch into a variety of use modes. SOLUTION: This change device comprises a support member 7 having connection parts 8 and 9 detachably attached to a pair of strap attaching parts 4 in a case 1 of the wristwatch, and a portable means 17 attached to the support means.
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