Watch Back Case Press Tool Mineral Glass Crystal Presser Watch Repair Tool. Watch Glass Fitting & Case Closing Precision Presser For fitting unbreakable glasses with or without tension rings, and fitting flat mineral glass crystals, along with closing pressure back waterproof snap type case backs. Fits all types of plastic crystals. Also can adjust the proper height of machine according to need. This product weight is up to 4.8kg and the operation is highly stable. Specification: Condition: new Material: Steel Size: 27x11x25cm Weight: 4.8kg. X Watch Back Case Press Tool. Unused/unopened merchandise will be fully credited. We are not responsible for any custom. All emails will be answered within 24 hours.