| 摘要 |
In the wrist watch, the assembly is provided with watch function (12) in the middle and houses a permanent magnet for indicating the direction with graduation formed on the circumference. The interior storage (7) for magnet consists of an air tighting case, which has an aqueous solution as lubrication oil and is formed in laminate structure for circular floating materials (9) and permanent magnet (8) with in the same shape as (9).
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