Biltmore pocket watch dating
The 992B (1940-1968) had different internal engraving as the years rolled on.
The earlier versions had flowery script, while the very recent version shown here has much plainer lettering.
it is among the highest quality consumer items ever made in the USA. It's varied a little over the months, but has never been more than ±15 seconds different from WWV.
Its regulator is adjusted not with a simple "F - S" lever, but with a zero-backlash (spring loaded) micrometer screw that adjusts the regulator far more precisely.
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This free website's biggest source of support is when you use those or any of these links when you get anything, regardless of the country in which you live — but I receive nothing for my efforts if you buy elsewhere. February 2014 watch & clock reviews all reviews Hamilton 992B movement. The Hamilton 992B Railway Special is a high-quality railroad pocket watch.
None of my quartz watches run within a second per month; this is more accurate than my Casio Atomic watch, if neither is reset and has to free-run for a month.
(My Casio free-runs 1/3 of a second per day fast ( 10 seconds per month) if it doesn't reset itself each night.) I run my 992B in ideal conditions, usually sitting on my desk all day and left in a different position at night depending on if it's a little fast or slow, but any 992B in proper operating condition should run within a few seconds per day.
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An inaccurate watch could put one train in the same place in the other direction as another train.
Each railroad adopted different standards, but generally they required watches that kept time to within 30 seconds per week.
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