Electric Clock Movement
 |
 Toleware Clock  US $20.00
|
 Excellent Vintage Marble Mantle Clock Electric Movement 12x10x175 US $79.00
|
 HAMMOND SYNCHRONOUS ART DECO CLOCK CHROME VINTAGE US $15.45
|
 Seth Thomas Mantle Clock with Chime US $153.00
|
 1985 enjoy coke collectable wall clock cocacola US $25.00
|
 Vintage Seth Thomas Mantel Clock converted to quartz movement Works US $9.99
|
 WITTNAUER ELECTRIC EARLY TRANSISTORIZED CARRIAGE CLOCK MADE IN FRANCE ca 1950s US $65.00
|
 Old Wooden Clock Converted to Battery US $49.99
|
 10 VINTAGE ALARM CLOCKS BABY BEN WESTCLOX BULOVA ETC KITCHEN MANTLE WALL OLD US $9.95
|
 Ingraham electric chime mantel clock with mechanical movement and chime bars US $5.00
|
 ADVERTISING WALL CLOCK ORIG 1979 NESTLE ANNIVERSARY ELECTRIC RUNNING OKAY US $29.95
|
 HAMMOND CALENDAR ELECTRIC CLOCK GREGORY SKYSCRAPER ART DECO MODEL US $12.50
|
 AIRPLANE CLOCK MASTERCRAFTERS w SESSIONS MOVEMENT BAKELITE NOT WORKING US $26.01
|
 1940s General Electric Kitchen Clock cleaned and running US $15.00
|
 GE GENERAL ELECTRIC THERMAL CONTROL THERMOSTAT TELECHRON CLOCK BAKELITE WORKS US $29.99
|
 Vintage Sessions Movement Porcelain Clock US $50.00
|
 VTG Antique 20s 30s Deco Westinghouse New Haven Working Electric Clock Movement US $44.99
|
 Chelsea electric desk clock US $99.00
|
 Exquisite Jaeger LeCoultre ATMOS Caliber 540 Model Shelf Mantle Clock US $1,199.99
|
 electric self winding clock co movement parts or repair US $29.99
|
 General Electric Vintage Wall Clock 1927 School Industrial US $19.99
|
 VINTAGE CLOCK SMITHS ELECTRIC LARGE INDUSTRIAL COLLECTABLE BARGAIN US $199.99
|
 Hammond Gothic Arch Cathedral style electric mantel Parts clock US $5.00
|
 VINTAGE PORCELAIN MANTLE CLOCK 7 1 4 US $75.00
|
 VINTAGE ART DECO ELECTRIC MANTLE CLOCK LIFETIME MARBLE ONYX US $17.99
|
 Rare General Electric Folk Pop Art Wall Clock w 2nd Hand Angel Horse Birds 2H69 US $59.99
|
 Vintage Original Lanshire Kitchen Wooden Wall Clock Spoon Fork Rolling Pin US $9.99
|
 NEW SYNCHRON A43RA A44RA or I43RA L43RA K43RA 143RA CLOCK MOTOR HANSEN 610 US $49.99
|
 ANTIQUE SOLID BRASS BRONZE CLOCK CASE ORIENTAL STYLE BEAUTIFUL MUST SEE US $89.99
|
 VINTAGE SOLID COPPER CLOCK SESSIONS DOUBLE HORSE HEAD WORKS ELECTRIC EXCELLENT US $29.00
|
 RARE ANTIQUE ANSONIA MOZART FIGURAL MANTLE SHELF CLOCK FOR PARTS OR REPAIR US $77.00
|
 Seth Thomas Antique Round Top Beehive Time Strike Chiming Clock w 48R Movement US $25.01
|
 NEW IN BOX VINTAGE WESTCLOX DUTCH FOLK ART DECORATIVE ELECTRIC WALL CLOCK US $39.99
|
 RETRO ELECTRIC CLOCK WITH LANSHIRE CLOCK MOVEMENTS RUNNING US $5.00
|
 Vintage Art Deco Whitehall Hammond Electric Marble Brass Clock US $59.95
|
 VINTAGE ALARM CLOCK PARTS BIG BOXLOT MOVEMENTS MOTORS KITCHEN MANTLE WALL OLD US $9.95
|
 Vtg BISCAYNE 24 HOUR MILITARY TIME Retro Electric WALL CLOCK Aqua Second Hand US $23.06
|
 California Redwood Electric Clock Clock Movements by Lanshire US $14.99
|
 Mastercrafters Mantle Clock Movement by Sessions US $49.99
|
 Tower Street or Post Clock with howard reverse gold leaf dials master US $495.00
|
 Beautiful Vntg Coventry Porcelain Elec Shelf Clock Movement By Sessions Works US $12.99
|
 Locomotive Train Lighted Animation Motion Clock 470 Cast Bronze United Lamp 40s US $420.00
|
 Vintage Mastercrafters by Sessions Electric Wall Clock with Brass Zodiac Sign Fr US $18.99
|
 Electrician Electrical Tools Company Sign Wall Clock US $22.00
|
 Klein Tools Electrician Electrical Sign Lineman Powerlines Cable Sign Wall Clock US $22.00
|
 Personalized Electrical Electrician Tools Vintage Retro Art Sign Wall Clock US $22.00
|
 Electric Mantel Clock Knickerbocker Working Original TELECHRON Inc 1940s US $9.95
|
 steam boat clock US $40.00
|
 Vintage E Ingraham Electric Clock Desk Shelf Works Great c1940 Model SSD1 US $11.25
|
 Vintage Sessions Electric Mirror Clock Shelf Mantle – Repair or Parts US $15.95
|
 SETH THOMAS ANTIQUE MANTEL CLOCK ALL ORIGINAL US $99.99
|
 Telechron Synchronous Motor Electric Clock Movement Model 59M31 US $9.99
|
 Sessions Electric Clock Movement No 1700506 w 2 Motors US $9.99
|
 Vintage 1940s Westclox Art Deco Shelf Electric Alarm Clock BANTAM Ivory color US $34.99
|
 Linden Classic Quartz Alarm Clock Metal Base Working Alarm Keeps Great Time US $4.95
|
 Vintage 1930s New Haven Westminster Mantel chime Clock Romany Art Deco Style US $99.99
|
 Vintage 1980s Electric Lighted Miller Lite Bar Clock Advertizing Beer US $24.99
|
 Vintage 1939 GE Revere Telechron Deco Westminster Mantel Clock 374 Philharmonic US $149.99
|
 Vintage 1920s SESSIONS ART DECO Electric Shelf Mantel Clock US $34.99
|
 Vintage 1930s Art Deco Gothic Bakelite Alarm Clock LAWRENCE Clock Co Chicago US $49.99
|
 Retro Mid Century Boomerang Table Clock GE Telechron Electric Clock Model 5H71 US $99.00
|
 Antique clock Vintage Art Deco clock Electric clock 1930s original runs well US $.99
|
 ONE HOUR TIMING CLOCK REMOTE CONTROLLED US $25.00
|
 Vintage Used Rolex Chronometer Electric Wall Clock US $850.00
|
 New Hansen A43RA Synchron Motor A44RA US $27.94
|
 LARGE TRADITIONAL SETH THOMAS CLOCK CASE NEW DUAL CHIME STRIKE MOVEMENT US $29.99
|
 Standard Electric Time Co Pulsar Clock Movement US $16.00
|
 Moonbeam Alarm Clock RARE Blue The considerate alarm clock US $17.99
|
 Vtg Lanshire Electric Clock Car Racing Trophy 1st Place IMUSCC 1961 Works US $24.99
|
 VINTAGE BRASS LANSHIRE MANTLE CLOCK W ORIGINAL LANSHIRE TAGKEEPS PERECT TIME US $10.00
|
 VINTAGE WESTMINSTER MANTLE CLOCK MANTEL SHELF OLD COLLECTIBLE WOODEN WOOD US $19.99
|
 New Compact Electric Movement Choose a Size MEC 12 US $9.95
|
 New Waterbury Clocks Watches with Price Guide Update by Tran Duy Ly BK 295 US $72.95
|
 Electric clock movement for Synchron motor US $9.00
|
 Vintage electric clock timer and appliance motors They work new used US $9.50
|
 ART NOUVEAU LADIES BUST Brass Metal Clock Casing US $15.00
|
 Antique SESSIONS Electric Mantle CLOCK Marble Stone Case Bubble Glass Face WORKS US $64.99
|
 MARILYN MONROE MAE WEST BETTY GRABLE Ceramic MANTLE CLOCK CASE Japanese US $10.00
|
 STANDARD ELECTRIC SLAVE IMPULSE CLOCK VINTAGE WALL CLOCK US $12.50
|
 Spartus Pendulum Wall Clock Model 4600 US $7.99
|
Quartz Wall Clocks create reliable time pieces
A quartz wall clock is a clock that uses an electronic oscillator that is regulated by a quartz crystal to keep time. This crystal oscillator creates a signal with very precise frequency, so that quartz clocks are at least an order of magnitude more accurate than good mechanical clocks. Generally, some form of digital logic counts the cycles of this signal and provides a numeric time display, usually in units of hours, minutes, and seconds. Since the 1970s, they have become the most widely used timekeeping technology.

Chemically, quartz is a compound called silicon dioxide. When a crystal of quartz is properly cut and mounted, it can be made to vibrate, or oscillate, using an alternating electric current. The frequency at which the crystal oscillates is dependent on its shape and size, and the positions at which electrodes are placed on it. If the crystal is accurately shaped and positioned, it will oscillate at a desired frequency; in wall clocks and watches, the frequency is usually 32,768 Hz, as a crystal for this frequency is conveniently small, and as this frequency is a power of two and can easily be counted using a 15-bit binary digital counter. Once the circuit supplying power to the crystal counts that this number of oscillations have occurred, it increases the recorded time by one second. This property, of changing shape under an electric current, is known as piezoelectricity. Such crystals were once used in low-end phonograph cartridges: the movement of the stylus (needle) would flex a quartz crystal, which would produce a small voltage, which was amplified and played through speakers. Many materials can be formed into plates that will resonate. However, since quartz can be directly driven (to flex) by an electric signal, no additional speaker or microphone is required.
Quartz has the further advantage that its size does not change much as temperature fluctuates. Fused quartz is often used for laboratory equipment that must not change shape along with the temperature, because a quartz plate's resonance frequency, based on its size, will not significantly rise or fall. Similarly, a quartz clock will remain relatively accurate as the temperature changes.
Quartz wall clocks come in a wide range of styles and colours and because the quartz mechanism offers a reliable time keeping piece they are by far the most common of the modern wall clocks. Quartz wall clocks come in a wide variety of colours, sizes and styles so you can choose this reliable time keeper for virtually any room in your house.
About the Author
Offering useful information on clocks and wall clocks
Posted in 
Tags: