The ornamental design for a spectacle hinge, as shown and described.
1. Spectacle hinge
1.1 : Perspective
1.2 : Perspective
1.3 : Bottom
1.4 : Top
1.5 : First side view
1.6 : Second side view
The spectacle leg is shown for illustrative purpose only and form no part of the claimed design; Fig. 1.1 shows a perspective view of the design; Fig. 1.2 shows a top perspective view of the design; Fig. 1.3 shows a bottom view of the design; Fig. 1.4 shows a top view of the design; Fig. 1.5 shows a first side view of the design; Fig. 1.6 shows a second side view of the design.