IF there is no evidence in the basement of movement I don't think you have a structural problem. The cracks and a seal around the window frames could pose a moisture intrusion problem if not repaired. The sills look dried out and water may have entered. I would look closely at the facia and eves above both cracks also. My neighbors house lost two stories of stucco on a bay area of the south wall because of leaks behind the gutter in this area.
The only metal lath I've encountered in these old houses is used in the corners.

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Rick Sabatino
Sabatino Consulting, Inc.
Oak Park, IL