| 摘要 |
For opening the watch case (1) by extracting the glass (2), this case is fixed in an enclosure (3), after having removed its crown and its stem. A sucker (4) is then applied onto the glass, this sucker being capable of being operated from outside the enclosure using a handle (40). By using a pump controlled by a lever (37), the enclosure is subjected to a defined overpressure, after which a pulling force (A) is exerted on the sucker until the glass is extracted. Since the overpressure is the same outside and inside the case, no displacement of air, and therefore no damage to the mechanism of the watch, is produced when the glass is separated from the case. <IMAGE> |
