![]() ![]() Over the centuries, as clocks evolved and wristwatches came into being, the concept of conquering the feat of chronometer status for the wrist remained important. This chronometer movement is based on a calibre developed in 1878 which was adapted to improve its accuracy. Later in the 1880s, Longines became involved in high-precision timekeeping and produced its first movement for a certified chronometer, the 21.59 calibre. Not only did this save lives and ships, but also enabled countries to build their naval and exploration powers. Finally, with that precise working clock operating at a fixed location (Greenwich Mean Time), sailors could make some quick calculations at local noon and determine the ship’s longitude. After multiple sea-faring journeys, it was determined that the clock built was indeed accurate at sea. It then also took him years to convince the Longitude Board that his clocks worked. The first working marine chronometer was invented and built by British watchmaker John Harrison, working with different materials to render friction-free parts that were impervious to rust. As a result, in 1714, the British government issued a contest, called the Longitude Act, with a hefty monetary prize that would equal several million today, to encourage watchmakers and scientists to develop a “precise and useful” way to determine longitude on the high seas. In 1707, in a single incident at sea, more than 2,000 sailors died when their homebound British ships ran aground on jagged rocks. At the time, during the 1600’s and 1700’s, seafaring exploration was in full swing, and many ships would run aground and perish because they couldn’t determine longitude, as there was not an accurate clock aboard the vessels to do the calculations. Send us feedback about these examples.The chronometer was first developed in the 18 th century after decades of research and development. These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chronograph.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. 5271P, the latest model of Patek’s signature perpetual calendar chronograph model that started in the 1940s with the Ref. 2023 The top lot was a platinum and diamond-set Patek Philippe Ref. 5208, the minute repeater and single-button chronograph showcases a perpetual calendar. 2023 Dubbed the Patek Philippe Grand Complications, or Ref. 2023 Its coupling-clutch is vertical for more reliable starting of the chronograph seconds hand. 2022 The best stainless steel watches come in a variety of styles, from classic dress watches to nifty chronographs to rugged sports watches. Degen Pener, The Hollywood Reporter, 6 Jan. 2023 Other watches that Biden has worn over the years include a Seiko 7T32-6M90 alarm chronograph, a blue-dial Omega Seamaster Diver 300m, a Tissot T-Touch and a Vulcain Cricket alarm watch, which has also been worn by Harry Truman, Dwight Eisenhower, Richard Nixon, Lyndon B. 2023 The result is a musical watch whose gongs indicate the chronograph’s elapsed time rather than the current time, producing three separate musical motifs for the minutes, tens of seconds and single seconds. 2023 The chronograph’s tachymeter scale is protected under its sapphire crystal. ![]() Recent Examples on the Web This lighter, hotter, sweatier version of the Italian carmaker’s decadent dual-sport could be compared to a limited-edition chronograph, a trophy to be waved under other collectors’ noses with an insolent shooting of a cuff.
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