There are just 1, 200 pieces available globally of this 1970 Divers modern reinterpretation timepiece, commemorating the 80th birthday of Japanese explorer Naomi Uemura, the first man in the world to climb the highest peaks of each five continentswearing a Seiko diving watch. The dial pattern is based on the mountainous surfaces that Naomi would have seen on his numerous treacherous climbs and subsequent dog sled alpine missions. The crown at 4 oclock position for comfort and practicality is protected by the wide flowing case design around it, creating its signature look. The design was namedCaptain Willardby fans for Martin Sheens character who wore it in theApocalypse Nowmovie. Comes with bracelet and additional blue silicone strap featuring therail patternfrom the archives of the original Seiko divers watch designs. Prospex is a combination of the wordsProfessionalandSpecifications.Seiko Prospex timepieces are designed to be practical, reliable and durable