Omega Seamaster Railmaster Ref 220.10.38.20.01.002. This collection was created in 1957 the same year as the Speedmaster and Seamaster 300M. Today all three models remain a pillar of the professional series collection and cater to a different professional niche. This watch is the brand’s signature anti-magnetic watch featuring resistance to electromagnetic fields up to 15 000 gauss. Ref. 220.10.38.20.01.002 is a heritage model developed by Omega to honor the collection’s 60th anniversary. The limited edition watch was produced in quantities of just 3 557 watches and boasts a very desirable neo-vintage design set. Features include a black “Tropical” dial decorated with beige Super-LumiNova older-style hour markers and broad-arrow hands and a modern Master Chronometer self-winding movement.