Tool 107 refers to the tool you need to lift the crystal in order to remove the movement. The men's version requires Tool 102.
Dynamics tend to be less molested because the movement is harder to access. You have to remove the crystal, remove the stem, then rotate the dial about 30 degrees before the movement will drop out of the case. Omega helpfully notched the dials in the right spot, small enough for a toothpick to do the job.
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