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The Waltham Model 1857 is a watch made by the American Watch Company, later called the Waltham Watch Company in Waltham, Massachusetts. The Model 1857 was first made in 1857. Prior to that year, pocket watches were not made of standard parts and repairing and making the watches was difficult and expensive. The American Watch Company created and ...
Waltham model 1899 pocket watch movement Movement of a gold Elgin pocket watch, c. 1919. Pocket watch movements are occasionally engraved with the word "Adjusted", or "Adjusted to n positions". This means that the watch has been tuned to keep time under various positions and conditions. There are eight possible adjustments: Dial up; Dial down
WALTHAM Premier pocket watch Vanguard Model 1908 16s 23j 10k Gold Filled circa 1943 Made in USA During World War II Waltham was an important contractor for the American military, producing timepieces for service personnel and timing devices for military ordinance, such as bombs and torpedoes, with the company's Waltham, Massachusetts factory ...
A fusee (from the French fusée, wire wound around a spindle) is a cone-shaped pulley with a helical groove around it, wound with a cord or chain attached to the mainspring barrel of antique mechanical watches and clocks. It was used from the 15th century to the early 20th century to improve timekeeping by equalizing the uneven pull of the ...
The watch was an 18-size, full plate design. In 1869, the National Watch Company won "Best Watches, Illinois Manufacture" at the 17th Annual Illinois State Fair, for which it won a silver medal. [3] The company officially changed its name to the Elgin National Watch Company in 1874, as the Elgin name had come into common usage for their watches.
Dent was a London manufacturer of luxury clocks and watches, founded by Edward John Dent. Dent began making watches in 1814, although the Dent triangular trade mark was not registered until 1876. A notable success for the company was winning the contract to make the clock for the new palace of Westminster, which became known as Big Ben.
It is a mechanical pocket watch which features 57 complications, introduced by Vacheron Constantin in 2015. The company claims that it is the most complicated mechanical pocket watch ever created. The Reference 57260 took eight years to assemble, and has 2826 parts and 31 hands. It weighs 957 g (2.11 lb), and spans 98 millimetres (3.9 in).
All verge watches and spring driven clocks required fusees to equalize the force of the mainspring to achieve even minimal accuracy. The escapement has " recoil ", meaning that the momentum of the foliot or pendulum pushes the crown wheel backward momentarily, causing the clock's wheel train to move backward, during part of its cycle.
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