Meant to tackle a patina and darkening hue over time, the watch incorporates a contrasting present-day black rubber strap, though the Darwin-encouraged theme continues on the case back again, exactly where a portrait from the famed naturalist is engraved. They include a few in stainless-steel and 5 in valuable metals https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/