The Omega Speedmaster Professional reference 311.30.42.30.99.001 was introduced in 2010 as a limited edition of 1975 pieces in honor of the 35th anniversary of the Apollo-Soyuz space rendezvous. It features a dial made of meteorite. In 1975 The United States and The Soviet Union conducted the first joint space mission between the two countries. The two space modules flew to orbit, and the world watched as the American Apollo spacecraft docked with the Soviet Soyuz module, signifying a handshake between the two nations. This watch celebrates the 35th anniversary of this historic event using some exceptional materials in doing so.