The ornamental design for a watchdial, as shown and described.
FIG. 1 is a front elevation view of a watch dial showing the new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a side elevation view thereof;
FIG. 4 is an opposite side elevation view thereof as compared to FIG. 3;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a front, bottom, and side perspective view thereof.
The name “Patek Philippe” disclosed on the watch dial forming part of the claimed design is a registered trademark of Patek Philippe, which is the Applicant and Assignee of this application.