Greenwich Mean Time (GMT) is the mean solar time at the Royal Observatory in Greenwich, London, counted from midnight. At different times in the past, it has been calculated in different ways, including being calculated from noon; as a consequence, it cannot be used to specify a particular time unless a context is given. The term 'GMT' is also used as one of the names for the time zone UTC+00:00 and, in UK law, is the basis for civil time in the United Kingdom.
A watch is a portable timepiece intended to be carried or worn by a person. It is designed to keep a consistent movement despite the motions caused by the person's activities. A wristwatch is designed to be worn around the wrist, attached by a watch strap or other type of bracelet, including metal bands, leather straps or any other kind of bracelet. A pocket watch is designed for a person to carry in a pocket, often attached to a chain.
A time signal is a visible, audible, mechanical, or electronic signal used as a reference to determine the time of day.
Horology is the study of the measurement of time. Clocks, watches, clockwork, sundials, hourglasses, clepsydras, timers, time recorders, marine chronometers, and atomic clocks are all examples of instruments used to measure time. In current usage, horology refers mainly to the study of mechanical time-keeping devices, while chronometry more broadly includes electronic devices that have largely supplanted mechanical clocks for the best accuracy and precision in time-keeping.
George Graham, FRS was an English clockmaker, inventor, and geophysicist, and a Fellow of the Royal Society.
Timex Group USA, Inc. is an American global watch manufacturing company founded in 1854 as the Waterbury Clock Company in Waterbury, Connecticut. In 1944, the company became insolvent but was reformed into Timex Corporation. In 2008, the company was acquired by Timex Group B.V. and was renamed Timex Group USA.
A speaking clock or talking clock is a live or recorded human voice service, usually accessed by telephone, that gives the correct time. The first telephone speaking clock service was introduced in France, in association with the Paris Observatory, on 14 February 1933.
LG Electronics Inc. is a South Korean multinational electronics company headquartered in Yeouido-dong, Seoul, South Korea. LG Electronics is a part of LG Group, the fourth largest chaebol in South Korea, and often considered as the pinnacle of LG Group with the group's chemical and battery division LG Chem. It comprises four business units: home entertainment, mobile communications, home appliances & air solutions, and vehicle components. LG Electronics acquired Zenith in 1995 and the largest shareholder of LG Display, world's largest display company by revenue in 2020. LG Electronics is also the world's second largest TV manufacturer behind Samsung Electronics. The company has 128 operations worldwide, employing 83,000 people.
Seiko Holdings Corporation, commonly known as Seiko, is a Japanese maker of watches, clocks, electronic devices, semiconductors, jewelries, and optical products. Founded in 1881, it is known for introducing one of the world's first quartz wrist watches as well as the world's first quartz watch with a chronograph complication.
Omega SA is a Swiss luxury watchmaker based in Biel/Bienne, Switzerland. Founded by Louis Brandt in La Chaux-de-Fonds in 1848, the company formally operated as La Generale Watch Co. until incorporating the name Omega in 1903, becoming Louis Brandt et Frère-Omega Watch & Co. In 1984, the company officially changed its name to Omega SA, which is currently a subsidiary of the Swiss Swatch Group. Omega opened its museum to the public in Biel/Bienne in January 1984.
TAG Heuer S.A. is a Swiss luxury watchmaker that designs, manufactures and markets watches and fashion accessories, as well as eyewear and mobile phones manufactured under license by other companies and carrying the TAG Heuer brand name.
Cartier International SNC, or simply Cartier, is a French luxury goods conglomerate which designs, manufactures, distributes, and sells jewellery, leather goods and watches. Founded by Louis-François Cartier in Paris in 1847, the company remained under family control until 1964. The company maintains its headquarters in Paris, although it is a wholly owned subsidiary of the Swiss Richemont Group. Cartier operates more than 200 stores in 125 countries, with three Temples in London, New York, and Paris.
Russell Edward Brand is an English comedian, actor, radio host and YouTuber.
Ulysse NardinSA is a Swiss luxury watchmaking company founded in 1846 in Le Locle, Switzerland.
Citizen Watch Co., Ltd. is an electronics company primarily known for its watches and is the core company of a Japanese global corporate group based in Nishitokyo, Tokyo, Japan. In addition to Citizen brand watches, it is the parent of American watch company Bulova, and is also known for manufacturing small electronics such as calculators.
Ernest Borel is a watch manufacturer founded in 1856 in Neuchatel, Switzerland. They have traditionally focused on export markets outside Europe and won several awards in the late 19th century, including first place in the 1866 Neuchatel observatory timing accuracy competition. This was viewed by the company as an important marketing strategy for increasing the brand's value, since the Neuchatel observatory was famed at the time for its timekeeping accuracy.
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. 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 Asian companies such as Seiko, Citizen, and Casio in Japan, which embraced the new electronic technology.
Hublot is a Swiss luxury watchmaker founded in 1980 by Italian Carlo Crocco. The company operates as a wholly owned subsidiary of the French luxury conglomerate LVMH.
Railway time was the standardised time arrangement first applied by the Great Western Railway in England in November 1840, the first recorded occasion when different local mean times were synchronised and a single standard time applied. The key goals behind introducing railway time were to overcome the confusion caused by having non-uniform local times in each town and station stop along the expanding railway network and to reduce the incidence of accidents and near misses, which were becoming more frequent as the number of train journeys increased.
Richard Mille is a Swiss luxury watch company founded in 2001 by Dominique Guenat and Richard Mille, and based in Les Breuleux, Switzerland. The brand specialises in ultra-high-end luxury watches.
