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Memovox
Memovox (portmanteau from lat. ''memoria'' 'memory' and ''vox'' 'voice') refers to a model series of mechanical wristwatches with alarm function of the Swiss watch manufacturer Jaeger-LeCoultre. History In 1951, Jaeger-LeCoultre's first alarm wristwatch was released under the name Memovox.Franco Cologni, Douglas Kirkland and Maurizio Galimberti: "Jaeger-LeCoultre. La Grande Maison." Éditions Flammarion, 2006, . The company Vulcain had already produced the world's first alarm wristwatch named ''cricket'' in 1949. These first Memovox models were equipped with the watch calibres K489, K489/1 or K601, which were wound manually.Zaf Basha: Jaeger LeCoultre. {{ISBN, 9780615223872. The K601 also referred to a later quartz movement by Jaeger-LeCoultre. The time and alarm function were separated by constructing two separate barrels which ensured that the power reserve of the clock was not reduced by triggering the alarm function. As a result, Memovox watches had two crowns for winding. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaeger-LeCoultre Memovox Model E855 With Calibre K825 (2)
Manufacture Jaeger-LeCoultre SA, or simply Jaeger-LeCoultre (), is a Swiss luxury watch and clock manufacturer founded by Antoine LeCoultre in 1833 and is based in Le Sentier, Switzerland. Since 2000, the company has been a fully owned subsidiary of the Swiss luxury group Richemont. Jaeger-LeCoultre is regarded as a top-tier Richemont brand. It has hundreds of inventions, patents, and more than one thousand movements to its name, including the world's smallest movement, one of the world's most complicated wristwatches (Grande Complication), and a timepiece of near-perpetual movement (the ''Atmos clock''). History Early history The earliest records of the LeCoultre family in Switzerland date from the 16th century, when Pierre LeCoultre (circa 1530 – circa 1600), a French Huguenot, fled to Geneva from Lizy-sur-Ourcq, France to escape religious persecution. In 1558, he obtained the status of “inhabitant” but left the following year to acquire a plot of land in the Vallé ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jaeger-LeCoultre
Manufacture Jaeger-LeCoultre SA, or simply Jaeger-LeCoultre (), is a Swiss luxury watch and clock manufacturer founded by Antoine LeCoultre in 1833 and is based in Le Sentier, Switzerland. Since 2000, the company has been a fully owned subsidiary of the Swiss luxury group Richemont. Jaeger-LeCoultre is regarded as a top-tier Richemont brand. It has hundreds of inventions, patents, and more than one thousand movements to its name, including the world's smallest movement, one of the world's most complicated wristwatches (Grande Complication), and a timepiece of near-perpetual movement (the ''Atmos clock''). History Early history The earliest records of the LeCoultre family in Switzerland date from the 16th century, when Pierre LeCoultre (circa 1530 – circa 1600), a French Huguenot, fled to Geneva from Lizy-sur-Ourcq, France to escape religious persecution. In 1558, he obtained the status of “inhabitant” but left the following year to acquire a plot of land in the Vallé ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moon Phase
Concerning the lunar month of ~29.53 days as viewed from Earth, the lunar phase or Moon phase is the shape of the Moon's directly sunlit portion, which can be expressed quantitatively using areas or angles, or described qualitatively using the terminology of the 4 major phases: new moon, first quarter, full moon, last quarter and 4 minor phases: waxing crescent, waxing gibbous, waning gibbous, and waning crescent. The lunar phases gradually change over a synodic month (~29.53 days) as the Moon's orbital positions around Earth and Earth around the Sun shift. The visible side of the Moon is variously sunlit, depending on the position of the Moon in its orbit. Thus, this face's sunlit portion can vary from 0% (at new moon) to 100% (at full moon). Each of the 4 major lunar phases (see below) is ~7.4 days, with +/− 19 hours in variation (6.58–8.24 days) due to the elliptical shape of the Moon's orbit. Phases of the Moon There are four ''principal'' (primary/major) lunar phases ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perpetual Calendar
A perpetual calendar is a calendar valid for many years, usually designed to look up the day of the week for a given date in the past or future. For the Gregorian and Julian calendars, a perpetual calendar typically consists of one of three general variations: # 14 one-year calendars, plus a table to show which one-year calendar is to be used for any given year. These one-year calendars divide evenly into two sets of seven calendars: seven for each common year (the year that does not have a February 29) with each of the seven starting on a different day of the week, and seven for each leap year, again with each one starting on a different day of the week, totaling fourteen. (See Dominical letter for one common naming scheme for the 14 calendars.) # Seven (31-day) one-month calendars (or seven each of 28–31 day month lengths, for a total of 28) and one or more tables to show which calendar is used for any given month. Some perpetual calendars' tables slide against each othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quartz Crisis
The quartz crisis was the upheaval in the watchmaking industry caused by the advent of quartz watches in the 1970s and early 1980s, that largely replaced mechanical watches around the world.Smithsonian: The quartz revolution revitalized the U.S. watch industry. It caused a significant decline of the Swiss watchmaking industry, which chose to remain focused on traditional mechanical watches, while the majority of the world's watch production shifted to Japanese companies such as , [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermès
Hermès International S.A., or simply Hermès ( , ), is a French luxury design house established in 1837. It specializes in leather goods, lifestyle accessories, home furnishings, perfumery, jewelry, watches and ready-to-wear. Its logo, since the 1950s, is of a Duke carriage with horse. History Beginnings in the 19th century Thierry Hermès was born in Krefeld, Germany, to a French father and a German mother. The family moved to France in 1828. In 1837, Hermès first established a harness workshop in the Grands Boulevards quarter of Paris, dedicated to serving European noblemen. He created high-quality wrought harnesses and bridles for the carriage trade, winning several awards including the first prize in its class in 1855 and again in 1867 at the Expositions Universelles in Paris. Hermès's son, Charles-Émile, took over management from his father in 1880 and moved the shop to ''24 rue du Faubourg Saint-Honoré'', where it remains. With the help of his sons Adolphe and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Favre-Leuba
Favre-Leuba is a Swiss manufacturer of luxury wristwatches headquartered in Zug, Switzerland, and formerly a pioneer in watch design, manufacturing and distribution. The foundation of the brand was laid in 1737 when Abraham Favre was registered as a watchmaker, so it has been reported as the second-oldest watch brand in Switzerland, after Blancpain (1735). History An archival document states that Abraham Favre was a watchmaker with his own workshop on 13 March 1737. It was his son, also by the name of Abraham Favre, who turned his father's passion into a business. In 1792 Abraham Favre, along with his two sons, Frederic & Henry-Louis, founded the company ''A.Favre & Fils'' in Le Locle. From the very beginning Abraham Favre concentrated on improving the technology of his watches, their properties at different temperatures as well as the materials used in watchmaking, thus making more reliable and accurate movements. Henry-Augustus, Frederic Favre's son and Abraham Favre's gra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monocoque
Monocoque ( ), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word ''monocoque'' is a French term for "single shell". First used for boats, a true monocoque carries both tensile and compressive forces within the skin and can be recognised by the absence of a load-carrying internal frame. Few metal aircraft other than those with milled skins can strictly be regarded as pure monocoques, as they use a metal shell or sheeting reinforced with frames riveted to the skin, but most wooden aircraft are described as monocoques, even though they also incorporate frames. By contrast, a semi-monocoque is a hybrid combining a tensile stressed skin and a compressive structure made up of longerons and ribs or frames. Other semi-monocoques, not to be confused with true monocoques, include vehicle unibodies, which tend to be composites, and inflatable shells or balloon tanks, both of which ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brooks Brothers
Brooks Brothers, founded in Manhattan, New York, in 1818, is the oldest apparel brand in continuous operation in America. Originally a family business, Brooks Brothers produces clothing for men, women and children, as well as home furnishings. Brooks Brothers licenses its name and branding to Luxottica for eyewear, Paris-based Interparfums for fragrances, and Turkey-based Turko Textiles for its home collection. As a result of store closures and poor online sales due to the COVID-19 pandemic, the company filed for bankruptcy protection in July 2020. Brooks Brothers announced in August 2020 that it would be purchased by Authentic Brands Group and by SPARC Group LLC (Simon Properties Authentic Retail Concepts Group LLC), a joint venture between Authentic Brands Group and Simon Property Group. History Founding and 19th century On April 7, 1818, at the age of 45, Henry Sands Brooks (1772–1833) opened H. & D. H. Brooks & Co. on the northeast corner of Catherine and Cherry stre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lapis Lazuli
Lapis lazuli (; ), or lapis for short, is a deep-blue metamorphic rock used as a semi-precious stone that has been prized since antiquity for its intense color. As early as the 7th millennium BC, lapis lazuli was mined in the Sar-i Sang mines,David Bomford and Ashok Roy, ''A Closer Look- Colour'' (2009), National Gallery Company, London, () in Shortugai, and in other mines in Badakhshan province in northeast Afghanistan. Lapis lazuli artifacts, dated to 7570 BC, have been found at Bhirrana, which is the oldest site of Indus Valley civilisation. Lapis was highly valued by the Indus Valley Civilisation (7570–1900 BC). Lapis beads have been found at Neolithic burials in Mehrgarh, the Caucasus, and as far away as Mauritania. It was used in the funeral mask of Tutankhamun (1341–1323 BC). By the end of the Middle Ages, lapis lazuli began to be exported to Europe, where it was ground into powder and made into ultramarine, the finest and most expensive of all blue pigments. Ultra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in a pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reactive chemical elements and is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium (gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetrachloroaurate anion. Gold is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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