Serengeti Pavia Polarized Sunglasses

A little late but they are both "555 nanometers marks the center of light’s visible color spectrum, right on the border of yellow and green" the difference is the mirror color (slight silver versus blue) and light transmission ratings

A comment on the photchromatic aspect of these lenses, it is very slight and not comparable to standard rx transition lenses. The blue mirror mineral glass version for example has these stats: 25% transmittance lightened lens - 16% transmittance darkened lens 89% blue light blocked lightened lens -93% blue light blocked darkened lens So even if it isn't triggering or the effect has weakened with use they are still perfectly good sunglasses. You can get the stats and see the tint simulator on their website https://www.serengeti-eyewear.com/en-us/uv-solar-lens/555nm-blue The blue mirror is a dark amber/bronze/light brown tint imo which the manufacturer describes as "555 nanometers marks the center of light’s visible color spectrum, right on the border of yellow and green." There is also a very light AR coating on the inner side of their mineral glass lenses.