preparation： Turn the four white parts of the case holder before opening the watch, then turn the black button to lower the height. | Step 1： Place the reverse side of the watch into the yellow case holder, then install the four white parts according to the watch belt Roll the black knob can adjust the yellow holder to fix the whole watch according to the size of the watch | Step2: Roll the silver adjustment wheel of the blue dial to set the bit spacing in order to adjust the back shell width of the watch. | Step3: After installing the Watch Back Case Opener, try turning the cover. The cover can be opened successfully. |
