| 摘要 |
PURPOSE:To obtain a waterproof small time piece by connecting an acryl glass and a resin body with a rubber packing. CONSTITUTION:An acryl glass 3 having a groove 3b on the entire circumference of the side thereof is securely welded on a resin body 1 at the peripheral section 3c of the undersurface thereof. A rubber packing 5 is attached to a clamping margine defined by a glass guideway 1b and a glass groove 3b of the body to secure a waterproofing property. |
