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Tissot was founded in 1853 by Charles-Félicien Tissot and his son Charles-Émile Tissot in the Swiss city of Le Locle, in the Neuchâtel canton of the Jura Mountains area. [2] The father and son team worked as a casemaker (Charles-Félicien Tissot) and watchmaker (Charles-Emile). His son having expressed an interest in watchmaking from a young ...
The Swatch Group Ltd is a Swiss manufacturer of watches and jewellery. The company was founded in 1983 through the merger of ASUAG and SSIH, moving to manufacturing quartz-crystal watches to resolve the quartz crisis threatening the traditional Swiss watchmaking industry.
ETA/Valjoux 7750 automatic movement. The Valjoux 7750 [9] aka ETA 7750 an extremely popular movement used in the majority of mechanical chronograph watches on the market in 2004. [10] The Valjoux 7750 uses a three-plane cam system, the coulisse-lever escapement, rather than the traditional chronograph mechanism, the column wheel.
Automatic quartz is a collective term describing watch movements that combine a self-winding rotor mechanism [1] (as used in automatic mechanical watches) to generate electricity with a piezoelectric quartz crystal as its timing element. Such movements aim to provide the advantages of quartz without the inconvenience and environmental impact of ...
A self-winding or automatic watch is one that rewinds the mainspring of a mechanical movement by the natural motions of the wearer's body. The first self-winding mechanism was invented for pocket watches in 1770 by Abraham-Louis Perrelet, [ 57 ] but the first " self-winding ", or "automatic", wristwatch was the invention of a British watch ...
The origin of the term G10 currencies is not clear, however it may be derived from the G10 countries and their agreement to participate in the IMF General Arrangements to Borrow (GAB). There is no longer a one-to-one match between the G10 currencies and the G10 countries. The G10 currencies are: [1] [2] [3] Australian dollar (AUD) Canadian ...
With the original patent for self-winding watches set to expire in the early 1930s, [3] Meylan (founder of Glycine but no longer affiliated with the company) began working on his own self-winding mechanism and formed the company Automatic E.M.S.A. (Eugène Meylan Société Anonyme). Meylan's automatic watch design was unusual: a separate module ...
G-10 or garolite is a high-pressure fiberglass laminate, a type of composite material. [1] It is created by stacking multiple layers of glass cloth, soaked in epoxy resin, then compressing the resulting material under heat until the epoxy cures.
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