Seiko Prospex 1970 Heritage Diver'S Save The Ocean Special Edition Watch SPB3011970 Heritage Diver's Save the Ocean Special Edition. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line meets every challenge with technological excellence and style. Part of a rich legacy of innovation in high intensity timekeeping, Prospex continues to celebrate a long history of sports watch excellence with re creations and re interpretations of landmark achievements. With contemporary styling and technology, this