1855 English Sterling Silver Key Wind Pocket Watch Case.

$149
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Description

Description

1855 English Sterling Silver Key Wind Pocket Watch Case.

The sterling silver case is hallmarked London with date letter U for 1855 & is 50mm in diameter. The dial face is approx 42mm in diameter, weighs 57.4 grams. It's going to need a repair, the case back is detached & is missing the bezel.

Always happy to combine postage where possible & practical. HNCO are not responsible for import duties or customs charges. This is the buyers / importers responsibility.

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HNCO is one of the leading sellers of Pocket watches on eBay Australia, with over 100+ Pocket watches on offer. We are constantly adding to our ever increasing range and have a large assortment of American Railroad Grade Pocket Watches.


American Railroad Pocket watches were amongst the highest grade watches made, having been made for the railways makes them a great choice to use every day, mainly for their durability over time. Their lower production quantities and of course their high grade movements make them also a great gift or investment.


A typical railroad's requirements for a pocket watch in the early 20th century might include:

* Only American-made watches may be used (depending on availability of spare parts).
* Only open-faced dials, with the stem at 12 o'clock.
* Minimum of 17 functional jewels in the movement.
* Size 16 or 18 only.
* Maximum variation of 30 seconds (approximately 4 seconds daily) per weekly check.
* Watch adjusted to at least five positions: Face up and face down (the positions a watch might commonly take when laid on a flat surface); then crown up, crown pointing left, and crown pointing right (the positions a watch might commonly take in a pocket). Occasionally a sixth position, crown pointing down, would be included.
* Adjusted for severe temperature variance and isochronism (variance in spring tension)
* Indication of time with bold legible Arabic numerals, outer minute division, second dial, heavy hands.
* Lever used to set the time (no risk of inadvertently setting the watch to an erroneous time, when winding the watch with the stem)
* Breguet balance spring
* Micrometer adjustment regulator
* Double roller escapement
* Steel escape wheel
* Anti-magnetic protection (after the advent of diesel-electric locomotives)

The minimum requirements were raised several times as watch-making technology progressed, and the watch companies produced newer, even more reliable models. By WW2, many railroads required watches that were of a much higher grade (as many as 23 jewels, for example) than those made to comply with the original 1891 standard.


_gsrx_vers_1653 (GS 9.7.5 (1653))
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