Railroad Grade Pocket Watches
vorticwatches.com
Railroad Grade Pocket Watches
1–10 of 16 posts
Re: Railroad Grade Pocket Watches
#2Wikipedia article.[1]
Re: Railroad Grade Pocket Watches
#3Ad for some watch company. Wikipedia article.[1] [1] https://en.wikipedia.org/wiki/Railroad_chronometer
Re: Railroad Grade Pocket Watches
#4Ad for some watch company. Wikipedia article.[1] [1] https://en.wikipedia.org/wiki/Railroad_chronometer
Re: Railroad Grade Pocket Watches
#5Ad for some watch company. Wikipedia article.[1] [1] https://en.wikipedia.org/wiki/Railroad_chronometer
Yuck.
Re: Railroad Grade Pocket Watches
#6Ad for some watch company. Wikipedia article.[1] [1] https://en.wikipedia.org/wiki/Railroad_chronometer
Most posts on here are ads, this one was 90% informative and I enjoyed the read and pictures that went with it, some things that the wiki article is missing.
Re: Railroad Grade Pocket Watches
#7I now want this as a battery life indicator on a smart watch.
Re: Railroad Grade Pocket Watches
#8Re: Railroad Grade Pocket Watches
#9It's worth pointing out that basically every quartz watch ever is vastly more accurate than any watch that was ever certified as railroad grade.
https://en.wikipedia.org/wiki/Quartz_clock
A high accuracy quartz watch is accurate to 10 seconds per year.
https://www.watchtime.com/featured/high-accuracy-quartz-guid...
However, railroad standard was 4 seconds daily. That means that if a high accuracy quartz watch is never checked it may fail the standard within a year. However, a less accurate railroad chronometer will always be checked because it is less accurate.
Re: Railroad Grade Pocket Watches
#10It's worth pointing out that basically every quartz watch ever is vastly more accurate than any watch that was ever certified as railroad grade.