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2. Mechanical watch - Wikipedia

   en.wikipedia.org/wiki/Mechanical_watch

   The hand-winding movement of a Russian watch. A mechanical watch is a watch that uses a clockwork mechanism to measure the passage of time, as opposed to quartz watches which function using the vibration modes of a piezoelectric quartz tuning fork, or radio watches, which are quartz watches synchronized to an atomic clock via radio waves.

3. Wheel train - Wikipedia

   en.wikipedia.org/wiki/Wheel_train

   In horology, a wheel train (or just train) is the gear train of a mechanical watch or clock. [1] Although the term is used for other types of gear trains, the long history of mechanical timepieces has created a traditional terminology for their gear trains which is not used in other applications of gears.

4. History of watches - Wikipedia

   en.wikipedia.org/wiki/History_of_watches

   A 16th-century portable drum watch with sundial. The 24-hour dial has Roman numerals on the outer band and Hindu–Arabic numerals on the inner one. [1]The history of watches began in 16th-century Europe, where watches evolved from portable spring-driven clocks, which first appeared in the 15th century.

5. History of timekeeping devices - Wikipedia

   en.wikipedia.org/wiki/History_of_timekeeping_devices

   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.

6. Rolex Cosmograph Daytona - Wikipedia

   en.wikipedia.org/wiki/Rolex_Cosmograph_Daytona

   Since the dials were made by Singer for Rolex, there are contemporary watches from other manufacturers which feature the same "exotic" dial. [ 32 ] The earliest "Paul Newman" Daytonas are Reference 6239 model watches, which use a black or white dial, and are known as three-color watches, as they have the name "Daytona" and hashmarks on the ...

7. Escapement - Wikipedia

   en.wikipedia.org/wiki/Escapement

   The sudden stopping of the escapement's tooth is what generates the characteristic "ticking" sound heard in operating mechanical clocks and watches. The first mechanical escapement, the verge escapement, was invented in medieval Europe during the 13th century and was the crucial innovation that led to the development of the mechanical clock ...