It is powered by a reliable quartz (battery-powered) movement

these sunglasses promise standout impact and exceptional clarity

Does it track multiple time zones

Is the crystal durable

It features a round ionic-plated black case and blue sunray dial set with batons

Ray-Ban Erika Classic RB4171 Havana Brown Gradient Sunglasses Product Type_Necklaces It is powered by aRay Ban Erika Classic RB4171 865 13 combines one of Ray Bans most recognisable silhouettes with soft everyday styling. Finished in a matte Havana frame with brown gradient lenses and slim metal temples, this lightweight design creates a relaxed look that transitions effortlessly between holidays, city days and everyday wear. Why you'll love them Brown gradient lenses designed to create a softer visual transition throughout changing light conditions