Frog

THe History of Clock

By 877437

  • The First Mechanical Alarm Clock

    The First Mechanical Alarm Clock
    History of the Alarm Clock

  • The First Wristwatch

    The First Wristwatch
    -Created by Patek Phillipe
    -Only for Lady's

  • The Plato Clocks

    The Plato Clocks
    ・the first degital clocks
    ・produced by Ansonia Clock Company

  • The First Quartz Clock

    The First Quartz Clock
    ・invented by Warren Marrison

  • A Speaking Clock was invented

    The Speaking ClockParis International Exhibition

  • The First Atomic Clock

    The First Atomic Clock
    ・ an ammonia maser device
    ・built at the U.S. National Bureau of Standards

  • The Royal Mecca Clock

    The Royal Mecca Clock
    The Mecca clock
    ・the largest clock in the world
    ・in Saudi Arabia
    ・151 feet in diameter

  • Jaquet Droz's La Machine

    Jaquet Droz's La Machine
    Jaquet Droz's La Machine
    ・10 tears to built
    ・it writes the time on a card
    ・$342,275