The ornamental design for an add-on dial for watches, mobile phones, computer screens or other displays, as shown and described.
FIG. 1 is a front elevation view of a first embodiment of an add-on dial for watches, mobile phones, computer screens or other displays showing my new design;
FIG. 2 is a front elevation view of a FIG. 1 with the indicator in an alternate position;
FIG. 3 is a front elevation view of FIG. 1 shown in use;
FIG. 4 is a front elevation view of a second embodiment of my new design of FIG. 1;
FIG. 5 a front elevation view of FIG. 4 with the indicator in an alternate position;
FIG. 6 is a front elevation view of FIG. 4 shown in use;
FIG. 7 is a front elevation view of a third embodiment of my new design of FIG. 1;
FIG. 8 a front elevation view of FIG. 7 with the indicator in an alternate position;
FIG. 9 is a front perspective view of FIG. 7 shown in use;
FIG. 10 is a front elevation view of a fourth embodiment of my new design of FIG. 1;
FIG. 11 a front elevation view of FIG. 10 with the indicator in an alternate position; and,
FIG. 12 is a front elevation view of FIG. 10 shown in use.