Category Archives: Clock repair

notes from 23 years of professional clock repair

Suggested Tools Used in clock repair

Posted on September 9, 2014 by Dave T

GENERAL INFORMATION (TOOLS) There is a countersink tool that you will inevitably need. Actually a set of them will probably be needed . PICTURE These are available from various tool manufacturers ; however it will probably be necessary to make … Continue reading →

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Sessions No. 706 Eight Day (repair notes)

Posted on September 9, 2014 by Dave T

There is a mantle clock made by Sessions that is a time only clock ; but looks like a time and strike unit in every way except there is only one place to wind the clock. The clock says No. … Continue reading →

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Junghans westminster chime (repair notes)

Posted on September 9, 2014 by Dave T

The Junghans w/c mechanism return spring on the trip; it is usually brass.

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Seth Thomas A 200 (repair notes)

Posted on September 9, 2014 by Dave T

Regulation on Seth Thomas A— 200 series movement : left for slower , right for faster 4 1/3 minutes per day = 1 turn. The Kieninger strike hammer support spring is .0075in. thick and .200in. wide. These are used on … Continue reading →

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Seth Thomas 124 (repair notes)

Posted on September 9, 2014 by Dave T

Seth Thomas 124 : Rack return spring : .010in. / Suspension spring thickness: .001in. .900in. long , .190in. wide. Hammer return spring: .016in. strong, trip lever return spring: .010in. inside plate , .013 outside plate. Regulation on the Seth Thomas … Continue reading →

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New Haven beehive style “Petite”

Posted on September 9, 2014 by Dave T

New Haven: Small beehive style mantle with a round mechanism (spring drive) 8 day the information on the inside back gives regulation parameters. The name of the clock is the Petite. Regulator: ¼ turn = 1 minute in 24 hours. … Continue reading →

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Waterbury triple plate chime mechanism

Posted on September 9, 2014 by Dave T

Waterbury triple plate westminster chime mechanism: mainspring specs: Time mainspring: .018in. X .750in. X 96in. Strike mainspring: .014in. X .750in. X 96in. Chime mainspring: .0225in. X .874in. X 78in. At this time there is no replacement available for the chime … Continue reading →

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Seth Thomas # 113 A

Posted on September 9, 2014 by Dave T

Technical information about the Seth Thomas #113A mechanism.The mechanism plays the westminster chime on a set of 5 rods friction fit into a gong block that says Mayland NY USA on it . The rods are a steel color and … Continue reading →

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Kundo Electronic clock

Posted on September 9, 2014 by Dave T

KUNDO ELECTRONIC: The Kundo ELECTRONIC clock ( made by Kieninger and Obergfell in Germany ) uses a 1.5 volt power source. The blue wire is to be hooked to the negative and the red wire should be hooked to the … Continue reading →

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Seth Thomas Sonora chime (dual chime)

Posted on September 9, 2014 by Dave T

The sonora chime by Seth Thomas that has dual chimes (whittington and westminster ) has 2 small dials about 1 ½ inches in diameter on the top of the face . One of them is for the chime selection and … Continue reading →

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