I enjoy hand-sewing, so I made time for the details. The cuffs have working buttonholes, so I lined the vent (top). This was not an easy task, since I didn't do it until after I had set in the sleeve.
The handworked buttonholes were incredibly time consuming but satisfying. It will take me another project or two to get the hang of it, but I'm slowly but surely learning how to keep them from looking like little caterpillars--i.e., too wide and too dense.
I bought the chain for this project several years ago. Because the jacket is underlined and interfaced, I wasn't sure it needed the chain's weight to hang well. But I like the sparkle, and it really does make a difference in the jacket's wearability.