此錶為"百分表",
錶面大指針旋轉1圈為1mm,最小刻度為0.01mm.
錶內小指針從0~10共10mm,歸零以後,大指針每旋轉1圈,小指針就累進至
1mm,以此類推10圈就是10mm.
偏擺側試影片檔連結http://v.youku.com/v_show/id_XNDA3MDc4MDAw.html