This new case wrench, commercially called Jaxa Style Case Opener designed to open cases of bigger watch to accommodate sizes up to 55mm diameter.
Includes 4 sets of pins (round, flat, square & curved) to open all Types of threaded cases., which are generally found in waterproof watches. These set of pins are selected to match the precise notch pattern on the caseback
The Tool’s large handle rotates to adjust the bottom pin, and the thumbwheel in the middle adjusts the two pins above.
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