Production of this limited-edition model (Reference 3578.51.00) is restricted to 5,441 individually numbered pieces. The Snoopy Award design is etched and painted on the sapphire crystal case back. OMEGA received this award, the highest distinction from NASA astronauts, on 5 October 1970 in recognition of its vital role in the safe return to Earth of the Apollo XIII mission. The legendary “Moon Watch” – flight-qualified by NASA for manned spaceflight missions in 1965 is the only watch ever to be worn on the moon. The Speedmaster Professional has luminous hands and hour markers (Super Luminova), a hesalite crystal as used on the original model and a screw-in case-back ensuring water resistance to 50 meters
