6645 N.O.W. Titanium Eyeglasses by Lindberg. Color: C01, C02, C04, C06, C06G, C07, C08, C10, C11, C12, C14, C19, C20, C21, Size: 49-20-150. Meet LINDBERG's 6645 model which thin rectangular lenses bridge the gap between minimalist and expressive, sporting a subtle upward curve at the outer edges. Feather-light titanium keeps it airy; spring-flex temples secure it in place. Nose pads gently conform without pressure. Clean, confident, and easy to wear—every day.