The only seam I can detect is across the front, but it's just impossible to attach the top in the uv layout without getting distortion and even then you can only attach it from one side. You would till have a seam across the front.

I am not a texture guy and have not worked in production so I am not sure what the proper solution is short of using a paint program to paint across the seams.

In the back the sharp edge is from the shadow of the handle, you may want to soften the shadows a bit.