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  2. Riefler escapement - Wikipedia

    en.wikipedia.org/wiki/Riefler_escapement

    The Riefler escapement is a mechanical escapement for precision pendulum clocks invented and patented [1] by German instrument maker Sigmund Riefler in 1889. [2] It was used in the astronomical regulator clocks made by his German firm Clemens Riefler from 1890 to 1965, [ 3 ] which were perhaps the most accurate all-mechanical pendulum clocks made.

  3. Sigmund Riefler - Wikipedia

    en.wikipedia.org/wiki/Sigmund_Riefler

    Sigmund worked mainly on new developments in the area of drawing instruments and precision clocks, while his brothers handled the technical, sales and management of the company. In 1878 he settled in Munich, to be in contact with the local scientific community. [4] He invented the Riefler escapement which was patented in 1889. [5]

  4. Pendulum clock - Wikipedia

    en.wikipedia.org/wiki/Pendulum_clock

    Gravity escapements were used in tower clocks. By the end of the 19th century specialized escapements were used in the most accurate clocks, called astronomical regulators, which were employed in naval observatories and for scientific research. The Riefler escapement, used in Clemens-Riefler regulator clocks was accurate to 10 milliseconds per day.

  5. Escapement - Wikipedia

    en.wikipedia.org/wiki/Escapement

    Galileo's escapement is a design for a clock escapement, invented around 1637 by Italian scientist Galileo Galilei (1564 - 1642). It was the earliest design of a pendulum clock. Since he was by then blind, Galileo described the device to his son, who drew a sketch of it. The son began construction of a prototype, but both he and Galileo died ...

  6. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The Ottoman engineer Taqi ad-Din described a weight-driven clock with a verge-and-foliot escapement, a striking train of gears, an alarm, and a representation of the Moon's phases in his book The Brightest Stars for the Construction of Mechanical Clocks (Al-Kawākib al-durriyya fī wadh' al-bankāmat al-dawriyya), written around 1565. [119]

  7. Complication (horology) - Wikipedia

    en.wikipedia.org/wiki/Complication_(horology)

    The Star Caliber 2000 has 21 complications. They include sunrise and sunset times and the lunar orbit, and it is capable of playing the melody of Westminster quarters (from Big Ben, the clock tower of the Houses of Parliament in London). The Franck Muller Aeternitas Mega 4 is the world's most complicated wristwatch. It has 36 complications, 25 ...

  8. List of watchmakers - Wikipedia

    en.wikipedia.org/wiki/List_of_watchmakers

    Sigmand Riefler (1847–1912), German clockmaker, Munich, Riefler precision pendulum clocks. Webster Clay Ball (1847–1922), American jeweller and watchmaker, Cleveland, railroad chronometer, Hamilton Watch Company. Henri Lioret (1848–1938), French watchmaker and inventor, Paris, automatons, first useful audio recordings.

  9. Talk:Riefler escapement - Wikipedia

    en.wikipedia.org/wiki/Talk:Riefler_escapement

    The escapement was never mass produced, and no examples are known to exist. It might be relevent to the Sigmund Reifler biographical article but not here, as the watch escapement was necessarily different from his pendulum clock escapement. There is a more important problem with this article. Riefler invented two pendulum clock escapements.