Case Opener Movement Holder Watchmakers For Rolex. Watch Case Opener Fits Rolex Watches. This is a new watch case opener designed for all Rolex water resistant screwback oyster cases. Accurately interlocks with the knurled edges of genuine Rolex case backs. It will not slip or damage case backs. This adjustable case holder accommodates all case sizes. This sturdy frame fits any bench vise. Includes centering pin which allows use in conjunction with the L-G "Master Case Opener" to open screw-on backs. It measures approximately 7 1/4" x 3" (184 x 76 mm). You receive: One die measuring approximately 18.5 mm in diameter. One die measuring approximately 20.5 mm in diameter. One die measuring approximately 22.5 mm in diameter. One die measuring approximately 26.5 mm in diameter. One die measuring approximately 28.5 mm in diameter. One die measuring approximately 29.5 mm in diameter. Watch Movement Holder. This is a new watch movement holder with 4 pins. Great for watch repair, holding watch cases, work materials and tools. Has plastic posts to prevent marring. The posts are removable and can be set in different positions for different cases. It opens and closes by turning the large knurled knob. Has a capacity of 1" (25 mm). It measures approximately 1 3/4 x 1 1/8 x 1 7/16" (44 x 29 x 36 mm). 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.