12 Plastic Watch Movement Holders For Watch Repair & Holding Round Movements. This is a new set of 12 plastic watch movement holders. Great for watch repair and holding round movementsWe 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.