Bergeon 5338-1F Large Case Opener For Polygonal and Slotted Cases.

This tool is best used on Polygonal and Slotted Case backs!

Notes about the use of the Bergeon 5338-1 F (4 bits side, 5338-A)

1. Adjust the the bit pairs to firmly sit on two opposite corners of the polygonal watch case.

2. Tighten the wrench

3. Hold the watch in your left palm or on the movement pad first and try to turn counter clock-wise.

4. If the case back sits too tight, you will have to fix the watch case in a good quality holder.

5. Once the watch case is securely fixed, try to turn the case opener counter clock-wise

Notes about the use of the Bergeon 5338-1 F (2 bits side, 5338-B)

1. Adjust the the 5338-B bits  to fit two opposite slots

2. Tighten the wrench

3. Hold the watch in your left palm or on the movement pad first and try to turn counter clock-wise.

4. If the case back sits too tight, you will have to fix the watch case in a good quality holder.

5. Once the watch case is securely fixed, try to turn the case opener counter clock-wise