New without tags: A brand-new, unused, and unworn item (including handmade items) that is not in original packaging or may be missing original packaging materials (such as the original box or bag). The original tags may not be attached. See all condition definitionsopens in a new window or tab. Watch Back Case Cover Opener Removal Set. + 6 Dies Part Watch Repair Tools. Die’s Type: 5537. No 0: 29.50mm. No 1: 28.30mm No 2: 26.50mm. No 3: 22.50mm. No 4: 20.20mm No 5: 18.50mm. Designed for opening and fitting screw cases on waterproof watches. High quality all metal construction. Includes wrench and six grooved dies.