![]() Not all watches manufactured as meeting railroad standards were approved by all railroads.Ī standard watch is one that met the general time service requirements that were in effect at the time that it was built. While some railroads listed specific makes and grades as acceptable, others just listed requirements. Different railroads accepted different watches. ![]() ![]() Each railroad either established their own requirements and had its own inspection service, or contracted an inspection service to ensure that all watches in use by specified personnel meet standard requirements.
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