The Waterproof Watch Case Pressure Tester is a 10-bar testing machine designed to test the water resistance of watches. It features a silver cylinder with an inner diameter of 6.5cm and an outer diameter of 8cm, made of glass, aluminum alloy, and rubber materials. The manual operation method allows for easy testing of quartz and mechanical watches, with an air pressure test range of 0.3-6.0 bar. This compact and efficient machine, measuring 24*14*27cm, is ideal for inspecting the waterproof capabilities of watches in a professional setting.