Product? : This is a watch back case press tool, also known as 6173 Watch Press Machine, for watchmakers and watch repairing enthusiasts. Material? : The press tool is made of quality metal for durability and longevity. It comes with a solid wooden base that adds stability during use. Base Size? : The base of the press machine measures approximately 26.8cmx11.2cm/10.55inchx4.41inch, providing ample space for easy and comfortable operation. Functionality? : This tool is designed to efficiently close your watch’s back case without damaging the watch or its parts, making it an essential tool for any watch repair kit. 26.8cmx11.2cm/10.55inchx4.41inch. 1 Watch Back Case Closer 1 Accessories.