Introducing Rotate Watches' professional-grade Case Press & Case Opener Knife Set, the perfect toolset for watchmakers and enthusiasts alike. This comprehensive kit provides everything you need to safely open and close watch cases with precision and ease. Compatible for closing our sapphire glass watch cases with a simple squeeze of the press. How to Use: Select appropriate dies for your watch size Screw dies onto the top and bottom of the press Align case components, ensuring the waterproofing ring is correctly positioned Apply slow, firm pressure with the case press Check for even closure around the case