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A Roskopf, pin-lever, or pin-pallet escapement is an inexpensive, less accurate version of the lever escapement, used in mechanical alarm clocks, kitchen timers, mantel clocks and, until the 1970s, cheap watches now known as pin lever watches. It was popularized by German watchmaker Georges Frederic Roskopf in its "proletarian watch" from 1867 ...
Bulova claims to have been the first manufacturer to offer electric clocks beginning in 1931, but the Warren Telechron Company began selling electric clocks in 1912, 19 years prior to Bulova. In the 1930s and 1940s, the brand was a huge success with its rectangular plated watches whose case was strongly curved to better fit the curve of the wrist.
[8] Clock cases, which come in many different materials, require special consideration and treatment in their own right. Conservators further advise not exposing a clock to a heat source of any kind, including strong sunlight or a mantel over a working fire, as this can cause damage to the clock cases and movements. [8]
Wittnauer movements were at the beginning generally made for them by Swiss firms (Revue Thommen and others), while in later years Wittnauer used a number of different sources for their movements. The company began as a small family business, catering to the ever-growing world of both scientific and private exploration, which gained them a ...
The lever escapement, invented by the English clockmaker Thomas Mudge in 1754 (albeit first used in 1769), is a type of escapement that is used in almost all mechanical watches, as well as small mechanical non-pendulum clocks, alarm clocks, and kitchen timers.
The following is a list of notable companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. In some instances the "company" consisted of a single person.
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The Museum of Clockmaking (German: Uhrenindustriemuseum) is a museum in the town of Villingen-Schwenningen, Germany, and is dedicated to the history of the clockmaking industry in the town. For much of the 19th century (and early 20th century), Schwenningen was one of southern Germany's most important centres of industrial scale clock ...
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