Material: Stainless steel
Dial: The tropical aged dial features triangular luminous hour indices with Arabic quarters, Daupine hands, centre seconds, and outer minute track.
The Railmaster was produced from 1957 as part of the original 'Tool Watch' trilogy alongside the Speedmaster and Seamaster 300. The Railmaster was designed for engineers and those who worked in close proximity to electromagnetic fields. It featured a thick dial and soft iron anti-magnetic cover to shield the movement from the effects of magnetism.
Web Reference: 7431