Dial portion of electronic device

FIG. 1 is a perspective view of a dial portion of an electronic device showing my new design;

FIG. 2 is a top plan elevational view thereof;

FIG. 3 is a left side elevational view thereof; and,

FIG. 4 is a front elevational view thereof.

The surfaces or portions of the article not shown in the drawing or described in the specification form no part of the claimed design.

The even broken line showings of an electronic device throughout the drawings are for illustrative purposes only and form no part of the claimed design. The dot-dash broken lines define, but are not included in, the boundaries of the claimed design.