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The Glycine Airman, the first watch capable of tracking two 24-hour time zones, has been used extensively in commercial and military aviation, as well as in spaceflights; notable examples include its use by United States Air Force pilots during the Vietnam War and astronaut Pete Conrad during the Gemini 5 and Gemini 11 spaceflights.
Omega cal. 321 movement. The Speedmaster was not originally designed for space exploration. Instead, it was introduced in 1957 as a sport and racing chronograph following on from the early chronographs of the 1920s and 1930s, including the Omega 28.9 chronograph, which was Omega's first small wrist chronograph, complementing Omega's position as the official timekeeper for the Olympic Games.
Pages in category "Omega watches" ... Omega Speedmaster This page was last edited on 28 March 2023, at 15:24 (UTC). Text is available under the ...
There are no time zones in Swatch Internet Time; it is a globally unified timekeeping system based on what Swatch calls "Biel Mean Time" (BMT), the time zone conventionally known as Central European Time or West Africa Time. Note that it is based on the time zone and not the actual mean solar time measured in Biel.
The Petrodvorets Watch Factory Raketa is one of only five watch brands in the world producing their movements in-house from start to finish, including hairsprings and escapements. Most watch brands globally do not produce their own hairsprings, they generally order them from Nivarox, a subsidiary of Swatch Group. This enables the Russian watch ...
Watches were worn during the Franco-Prussian War (1870–1871), and by the time of the Boer War (1899–1902), watches had been recognised as a valuable tool. [184] Early models were essentially standard pocket watches fitted to a leather strap, but, by the early 20th century, manufacturers began producing purpose-built wristwatches.
Timekeeping on the Moon is an issue of synchronized human activity on the Moon and contact with such. The two main differences to timekeeping on Earth are the length of a day on the Moon, being the lunar day or lunar month, observable from Earth as the lunar phases, and the rate at which time progresses, with 24 hours on the Moon being 58.7 microseconds (0.0000587 seconds) faster, [1 ...
In time display mode, the dot matrix portion of the display showed the day of the week to the left, and the time zone to the right. The default time zone was indicated as TZ1 (time zone 1), and was fully user customizable to designate any city in the world, usually using IATA naming conventions. The earlier Datalink models featured dual time ...