The ornamental design for a displaycase for watchbands, as shown and described.
FIG. 1 is a perspective view of a display case for watch bands showing my
new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevational view, the other sides being identical thereto;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a side elevational view thereof, on a reduced scale with product
containers shown in broken lines therein for illustrative purposes only
and forming no part of the claimed design.