![]() ![]() A Rolex Daytona for example, is both chronometer certified and has a Chronograph complication. A chronograph can be a chronometer, and a chronometer can be a chronograph. ![]() So in short: chronograph is a complication, chronometer is a measurement of accuracy. Watches are tested for a period of 15 days in 5 different positions in 3 different temperatures. The Chronograph segments and sub-section of the market are illuminated below: Based on Product Types the Market is categorized into Flyback chronographs, Double chronograph, Other that held the. High quality movements are even stricter: the maximum rate is +1 to -2 seconds a day. The movement can’t deviate more than -4 to +6 seconds a day. For a watch to receive a COSC certificate, it has to withstand rough, long and hard tests. Watches of all kinds of brands are subjected through the same tests, whether the watch costs ten euros or ten million euros. Brands can invent new certificates or use marketing lingo to praise their watches, but COSC is independent, prestigious and can’t be bribed. (Contrôle Officiel Suisse des Chronomètres). The Swiss standard for accurate timekeeping is tested by the COSC. Combining the Greek words chronos, meaning time, and graphos, meaning to write or to record, the name chronograph literally means a device to. When a watch is a chronometer, it means that the movement has been tested by a certified independent laboratory. These horological marvels are a lesson for another time.Ĭhronometer has nothing to do with complications or functions, but with accuracy. Lange & Shone Triple Split or the Audemars Piguet Concept Laptimer. Although chronographs are a relatively simple complication, they have the potential to get incredibly complicated. The King loved watching horse races and wanted a way to time them. Most chronographs feature subdials where you can read the exact time that has passed since you started the chronograph. The stopwatch can be started, stopped and reset without affecting the current time. The chronograph is what makes these models iconic. This complication can be seen on watches like the Omega Speedmaster, Rolex Daytona and Tag Heuer Carrera. Chronograph is another word for ‘stopwatch feature’. Let’s see where they differ.Ī chronograph is one of the most well known and most popular complications. However, they are often used in the wrong context.Īlthough they sound really similar, their definition couldn’t be more different. ![]() The inner bezel, marked to 24, makes one complete revolution per day.Chronograph and Chronometer are two very similar words that are very commonly used in horology. The World Time Zone feature has a rotating inner bezel with 24-hour display, part of the watch movement, and an outer bezel, listing the major cities in each of the 24 time zones. Its unique additional hour hand makes one revolution around the dial per day pointing to twelve indicates midnight and pointing to six indicates noon. Introduced by Rolex in the 1950's, this GMT complication is considered a pilot's watch. GMT (Greenwich Mean Time) with Fixed Hour Hand What makes it different is that the regular hour hand is set independently of the 24 hour hand, which completely changes the functionality of the watch. This variety of GMT is a further development of the original. GMT (Greenwich Mean Time) with Independent Hour Hand The watch displays two or more time zones. In dual time watches, both displays are powered by the same movement. While not technically a complication, the dual movement is a watch that contains two separate movements, each running from their own power source and each set independently. Dual Time Zone complications help determine the time in another time zone. ![]()
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