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<p>[QUOTE=&quot;afantiques, post: 233114, member: 25&quot;]You are mistaken </p><p><br /></p><p>Magnetism and hsir springs has always been a problem, both minor and incurable for many years, increasing accuracy of watches spurred research into steels and alloys that would resist becoming magnetised in the early 20th C, and new materials came into common use in the 30s. The new materials such as Invar also tended to be very resistant to variations due to temperature. The is no real connection to trains or locos. </p><p><br /></p><p>In Britain the &#039;official&#039; railway time was not the guard&#039;s watches but the station master clocks. Using clock systems like the Pulsynetic from Gents, or the Synchronome, one master clock of great accuracy could contol a large number of slave clocks. </p><p>Even before the introduction of master/slave clock systems, the station clocks would be regulated daily by a telegraph time signal, a system almost as old as the railways.</p><p>Watches for staff were a convenience, not a necessity.[/QUOTE]</p><p><br /></p>

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