NEPTUNE BEACH Eyeglasses by Blackfin. Color: Light Gold/Black, Green/Silver, Gray/Blue, Black/Silver, Size: 58-16-145. If you're looking for eyeglasses combining minimalist rawness with visual impact, check out the Blackfin NEPTUNE BEACH. Embodying the purity of titanium with its streamlined aviator frame, this model captures a sense of casual elegance that will instantly single you out as an individual of class and style. With its enduring titanium frame and customisable temple tips, the NEPTUNE BEACH exemplifies the subtle beauty of unadorned craftsmanship and modern sophistication.