The ornamental design for a watchcase, as shown and described.
FIG. 1 is a right front perspective view of a watchcase showing my new
design;
FIG. 2 is a top plan view thereof; the bottom plan view being essentially a
mirror image thereof; and,
FIG. 3 is a front elevational view thereof.
The rear, partially shown in FIG. 2 is plain and unornamented; and the
broken line showings of bands and hands in FIGS. 1-3 are environmental
only and form no part of the claimed design.