n 1880 - the company moved to a six-story building on Nineteenth St., with an equal-size annex on Wylie St. Tracy case company, a manufacturer of solid gold and silver watch cases, was acquired. Orders increased so rapidly that larger quarters became necessary immediately. Hagstoz & Thorpe seems to have made only gold-filled cases using the J. Boss" patent from the estate of John Stuckert. In 1871 Boss sold patent rights to John Stuckert of Philadelphia. Unlike gold washed cases, which were made using electroplating, cases produced by means of rolling had much harder gold surfaces and were thus less apt to wear. 23,820 of May 3, 1859, revolutionized the watch case industry by enabling the production of not only less expensive, but considerably stronger cases. Rolling increased the molecule density of the metal. Boss formed cases by rolling sheet metal as opposed to the traditional method involving soldering and cutting.
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That is, material made of a sheet of composition metal (usually brass) sandwiched between two thin sheets of gold. Boss received a patent for "spinning up" cases made of "gold-filled" type material. In 1853 Randolf & Reese Peters were making watch cases in Philadelphia, employing James Boss in their movement department. Movement – In very good condition and considered original to this case, genuine and functional. A finer hairline is noted at the 16-minute marker. This is a railroad grade pocket watch.Ĭase – I cannot see the outer case but from the condition on the inside and the bezel I would estimate that it is overall in very good condition.ĭial – Significant hairline fracture at the 12-minute marker and running the depth of the hour chapter ring. This is a pendant wound and lever set movement with double roller, going barrel, micrometer regulator, Breguet hairspring with the watch movement adjusted to five positions, temperature and isochronism.
#Buren pocket watch serial numbers serial number#
Movement: This is a size 18, damascened nickel full-plate movement, the grade 940, Model 1, with serial number of 524034, manufactured in 1906 in a run of 7000 such movements, each made with 21 jewels (ruby), some in gold screw type settings. There are blued steel American type Spade hands.
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There is also the Keystone case number.ĭial: A triple tiered, double sunk, white enameled dial with Arabic hour indices, open bar minute track with red Arabic markers placed every five minutes around the edge of the dial, sunken subsidiary seconds dial sunken dial center marked in script, ‘Hamilton Watch Co.’. Boss with the Keystone ‘Scales of Justice’ logo and mentions that the gilding should last a minimum of 20 years. The inside of the rear cover carries the markings of the Keystone Watch Case Company and the mark of early American casemaker J. The dial bezel is polished gold, while the outer back cover is not shown. Gent’s, 18s, gold filled, pendant wound and lever set, railway grade, open face, pocket watch, grade 940, S/N 52034, made by the Hamilton Watch Company, Lancaster, Pennsylvania, circa 1906.Ĭase: 18s, three leaf, keyless, gold filled, open face pocket watch with suppressed ball fluted gilt pendant and oval bow placed at the twelve-position relative to the dial. Thank you for sending in this heirloom pocket watch to for an appraisal.