New Watch Case Opener Fits Rolex Oyster. This is a new watch case opener & closer. It is designed especially for all Rolex water resistant screwback oyster cases. It accurately interlocks with the knurled edges of genuine Rolex case backs. This sturdy frame fits any bench vise. This adjustable case holder accommodates all case sizes. Includes 6 dies. We work hard to update our descriptions and pictures of our merchandise. As part of a process of ongoing innovation by our suppliers, newer versions of the item shown may be shipped before we are able to complete an update. As a result there may be a slight variation in color and design.