Production Year Approximate date the movement of a watch is produced. Factory records differ from year-to-year and factory-to-factory. Some records are more complete than others. For this reason, many factory production dates are approximate.
Size System developed and agreed-upon by American watch manufacturers to determine the diameter of a watch movement. The larger the number, the larger the diameter of the movement. The numbers used for American watch movement sizing have no correlation to the actual measurement of the piece. Jewels Only Dating elgin watches by serial number have a surface hard and perfect enough to allow metal parts to turn unceasingly year after year with a minimum of wear and friction.
Jewels also hold the microscopic droplets of oil that lubricate each tiny pivot point. While a certain number of jewels are necessary at vital points, an increase beyond this number does not always mean an increase in watch quality. Grade The grade of a movement is the identification of the level of quality to which it is finished, generally reflecting the amount of labor that went into them.
There is some relationship to the cost of materials, but the greater cost was the labor to finish and adjust the parts to the precision necessary for good timekeeping and, to a lesser extent, the pleasing appearance of the movement. For cases, the value of the material was a much greater proportion, with some extra labor going into engraved designs.
Model Much like the model of a car, the model of
Dating elgin watches by serial number watch movement indicates the style of the piece and the level of labor and jeweling that went into the movement.
Model names and numbers are used to determine railroad eligibility use and level Dating elgin watches by serial number construction. Models names can be words or numbers. Class An internal notation used by a watch factory to note the level of production and type of a watch movement.
This category can be used to note subtle differences between models and grades. Movement Configuration The movement configuration of a watch identifies whether it was manufactured to go in a hunting case — a watch case with a cover that opens when the crown is pushed; or, whether it is designed for use in an open-face case, which has no cover. Movement Setting The setting of a watch movement notes how the hands of the watch are moved to align with the correct time. A hidden lever located in a small slot near the edge of the dial must be pulled out before the hands can be adjusted.
This safeguard was developed to protect watches from having their hands jostled out of time accidentally.
Dating elgin watches by serial number movement finish of a watch traditionally refers to its appearance: Barrel The barrel of a movement is the area containing its mainspring. A chain, or cord, was wound around the plain barrel, connecting it to the fusee.
Going barrel is the form used in modern watches, is wound by turning the arbor and drives the watch movement by a ring of teeth around the barrel. This enables the mainspring to continue running the watch while it is being wound. The purpose of this arrangement was that if the spring breaks, destructive recoil forces would not Dating elgin watches by serial number applied to the vulnerable gear train. There are eight possible adjustments: Positional adjustments are attained by careful poising ensuring even weight distribution of the balance-hairspring system as well as careful control of the shape and polish on the balance pivots.
All of this achieves an equalization of the effect of gravity on the watch in various positions. Positional adjustments are achieved through careful adjustment of each of these factors, provided by repeated on a timing machine. Thus, adjusting a watch to position requires many hours of labor, increasing the cost of the watch.
Standard grade watches were commonly adjusted to 3 positions dial up, dial down, pendant up while higher grade watches were commonly adjusted to 5 positions dial up, dial down, stem up, stem left, stem right or even all 6 positions.
Railroad watches were required, afterto be adjusted to 5 positions. Marked For Movements can be specially marked or engraved when produced for specific customers or purposes. Also, when a clerk wished to note something unusual about a run of movements, they might make notes here. Web Design and
Dating elgin watches by serial number by the Sign8. Serial No.: # Manufacturer: Elgin. Grade: Size: 18s. Model: 5. Jewels: 11j.
Setting: Pendant. Finish: Half-Nickel. Added By: waynehill16 Profile. Elgin National Watch Company. In the spring of half a dozen ambitious Chicago businessmen decided that if Massachusetts could build a factory that built.
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