Vintage 70's Saba California Ivory Sleeveless Maxi Belted Dress

Vintage 70's Saba California Ivory Sleeveless Maxi Belted Dress. Amazing gorgeous dress. In good vintage preowned condition. No stains or damage. Is missing the loop to the hook on neck. Is easily replaceable, but not really needed as there are three buttons to secure it. There is no size tag so please see measurements below. I'd say it closer to a XS. As the waist doesn't have any stretch, and the neck is small. Does come with a belt but has belt loops so you can add something else. Measurements are approximate taken flat. Neck 5 3/4" Pit to pit 14 3/4" Waist 11 1/2" Front length 54 1/2" Belt length tip to tip 29"