Chanel 5102c 871 Opal Light Brown sunglasses

Chanel 5102c 871 Opal Light Brown sunglasses. Maybe vintage?? I tried them on and they are a bit snug on me on the sides of your head behind your ears. They also don’t quite sit ‘flat’ like maybe there’s a bend somewhere - see pics. Some measurements shown in photos. These do not come with a case. Any questions or measurements, please ask! Offers always welcome!