Ikepod is a wristwatch manufacturer specializing in conceptual timepieces. Some timepieces, such as many digital watches, can be switched between 12-hour and 24-hour modes. Since 2000s, Patek Philippe timepieces have repeatedly fetched high prices in auctions worldwide. Oscillating timekeepers are used in all modern timepieces. Marine chronometers, the most accurate portable timepieces, often have only 7 jewels. It was chosen among more than 2,200 timepieces presented by watchmakers from 35 countries. By 1880, Longines was known for the quality and precision of its timepieces. Clocks, hourglasses, sundials, and other timepieces both call to mind that time is passing. The single dot dial now appears in many of Movado's timepieces. Before the invention of the pendulum clock, sundials were the only accurate timepieces. There is no ISO standard for quartz timepieces, but there is development in this field. Li was announced the ambassador for Gucci Timepieces and Jewelry in Asia in Jun 2016. This movement is emulated in some of the licensed timepieces made by Mondaine. The term originated with mechanical timepieces, whose clockwork movements are made of many moving parts. By 1980, Vostok Watch Makers was producing 4.5 million timepieces per year.