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  2. French Empire mantel clock - Wikipedia

    en.wikipedia.org/wiki/French_Empire_mantel_clock

    When signed, they usually bear the name on the dial and could be the bronzier's name as well as the retailer's name or the movement maker. A small clock, usually covered by a glass bell, could cost 150 francs and 7.000 [5] francs for the biggest works intended to decorate the halls of palaces and big houses. The total price comprised the work ...

  3. Conservation and restoration of clocks - Wikipedia

    en.wikipedia.org/wiki/Conservation_and...

    Conservation experts advise clocks need to be serviced regularly. A clock is a complex mechanical contraption made of a variety of materials and with many small moving parts. [10] Even under perfect conditions lubricants deteriorate. Clocks should be examined and re-lubricated every three years.

  4. Astrarium of Giovanni Dondi dall'Orologio - Wikipedia

    en.wikipedia.org/wiki/Astrarium_of_Giovanni_Dondi...

    The dial rotated anticlockwise against a fixed pointer, showing mean time, and could be adjusted if necessary by intervals of 10 minutes of time by sliding out a pinion of 12 teeth that meshed with the 144 teeth of the main dial. On each side of the clock dial was a fixed plate or 'tabula orientii', graduated with months and days of the Julian ...

  5. History of timekeeping devices - Wikipedia

    en.wikipedia.org/wiki/History_of_timekeeping_devices

    The pendulum clock outperformed all other kinds of mechanical timekeepers to such an extent that these were usually refitted with a pendulum—a task that could be done without difficulty [127] —so that few verge escapement devices have survived in their original form. [128] The first pendulum clocks used a verge escapement, which required ...

  6. List of United States clock companies - Wikipedia

    en.wikipedia.org/wiki/List_of_United_States...

    The following is a list of American companies that produced, or currently produce clocks. Where known, the location of the company and the dates of clock manufacture follow the name. Samuel Abbott; Montpelier, Vermont (1830–1861) Ansonia Clock Company; Ansonia, Connecticut and Brooklyn, New York (1851–1929)

  7. Cairo Citadel Clock - Wikipedia

    en.wikipedia.org/wiki/Cairo_Citadel_Clock

    According to Osama Talaat, the clock had needed to be wound twice a day, but following the restoration now has a mechanism for "automatic winding of the clock without human assistance.” [1] The clock has been widely cited as having been sent by France in return for the Luxor obelisk now at the Place de la Concorde , [ 1 ] however this has ...

  8. Zytglogge - Wikipedia

    en.wikipedia.org/wiki/Zytglogge

    A moon dial circles the inner ring of the zodiac, displaying the moon phase. The principal hand of the clock indicates the time of day on the outer ring of 24 golden Roman numerals, which run twice from I to XII. It features two suns, the smaller one indicating the date on the rete's calendar dial. The larger one circles the zodiac at one ...

  9. Salisbury Cathedral clock - Wikipedia

    en.wikipedia.org/wiki/Salisbury_cathedral_clock

    Salisbury Cathedral clock, restored. The Salisbury Cathedral clock is a large iron-framed tower clock without a dial, in Salisbury Cathedral, England.Thought to date from about 1386, it is a well-preserved example of the earliest type of mechanical clock, called verge and foliot clocks, and is said to be the oldest working clock in the world, [1] although similar claims are made for other clocks.