RSSCategory: Clock Repair

Strike warning wheel problems in old French Clock

August 14, 2007 | By | Reply More
Strike warning wheel problems in old French Clock

I repaired a round French movement made ca. 1790 by Roque, Paris. It is a round time and strike movement about 3-1/2 inches in diameter. It is more delicate and looks more hand made than the typical round mass produced French movement from the mid-1800’s. After repair, the warning wheel kept getting out of synchronization […]

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Last updated November 27, 2009

Mainsprings for Seth Thomas Adamantine, 89C Movement

August 14, 2007 | By | Reply More
Mainsprings for Seth Thomas Adamantine, 89C Movement

I just overhauled a Seth Thomas 89C movement for an Adamantine mantel clock (my job no.4401). Both the time and strike mainwheels had significant tooth wear. The mainsprings had the ST logo and may be original, and the thicknesses were .071 for the time spring and .073 for the strike spring. To reduce future wear, […]

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Last updated November 28, 2009

Mainsprings for Seth Thomas Queen Anne, Time and Strike, with Second Hand

August 8, 2007 | By | 2 Replies More
Mainsprings for Seth Thomas Queen Anne, Time and Strike, with Second Hand

I just repaired a Seth Thomas “Queen Anne” wall clock with time and strike movement. It is a large movement (about 7 1/2 inches tall), much larger and heavier than the standard American movement. In Tran Duy Ly’s book “Seth Thomas Clocks and Movements”, the movement is listed as #85, and the mainsprings are specified […]

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Last updated November 28, 2009

Things to check when repairing an antique American clock movement

July 25, 2007 | By | Reply More
Things to check when repairing an antique American clock movement

Here are some things I check or do when repairing an antique American clock movement of the open spring type. Check wear on time and strike mainwheel teeth and record on log sheet. If mainspring arbor hooks have high backs, file down the backside to make it easier to unhook the inner end of the […]

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Last updated November 28, 2009

Seth Thomas Mantel Clock Glass Sizes

July 13, 2007 | By | 2 Replies More
Seth Thomas Mantel Clock Glass Sizes

Seth Thomas “Woodbury” Chiming tambour mantel clock, catalog no. 1302, model E899-259 (dated 3-11-77 has Hermle movement): 5 3/4 inch convex glass lens Seth Thomas Medbury – 5W Chiming tambour mantel clock (uses #124 movement, dated 50-05): 6 7/8 inch convex glass lens Note: I do not sell clock parts – this information is being […]

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Last updated November 28, 2009

400 Day Clock Suspension Spring Sizes

July 9, 2007 | By | 73 Replies More
400 Day Clock Suspension Spring Sizes

A company called Horolovar makes suspension springs for 400 day clocks. Various thicknesses are available. If the spring is too thick the clock will gain time, and if too thin it will lose time Suspension Spring Thickness for Schatz 400 Day and 1000 Day Clocks Schatz clocks have a model number inside a circle on […]

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Last updated April 8, 2012

Bushing American Antique Clocks

June 28, 2007 | By | 1 Reply More
Bushing American Antique Clocks

I prefer American made KWM size bushings of 1.8 millimeter height for for the train wheel pivots of antique American mantel, wall and shelf clocks with open mainsprings (clocks made by makers such as Ansonia, Ingraham, New Haven, Seth Thomas, Waterbury, etc). Commonly needed bushing sizes are L-41 through L-45, and L-88. The bushing is […]

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Last updated November 28, 2009

Friction Bushing Systems

June 23, 2007 | By | Reply More
Friction Bushing Systems

Two friction bushing systems are widely available – KWM and Bergeon. The KWM is preferable due to the smaller outside diameter (less material removed from the clock plate, yet the bushing has enough material to be strong). Also, the KWM bushings for American clocks are available with longer pivot area (some of the Bergeon bushings […]

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Last updated November 28, 2009

Merritt’s Mainsprings P1496

June 19, 2007 | By | 1 Reply More
Merritt’s Mainsprings P1496

I received a new batch of P1496 mainsprings (3/4″ x .0165″ X 96″) from Merritt’s antiques. They are made by a different supplier than the ones I wrote about recently. The ones I really like come packaged as follows: Each spring is wrapped in oiled paper, then in a plastic bag, then in a red, […]

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Last updated November 28, 2009

Mainsprings for Seth Thomas Oak Kitchen Clock

June 15, 2007 | By | Reply More
Mainsprings for Seth Thomas Oak Kitchen Clock

I just overhauled a Seth Thomas called “The Giant, No. 2” shown in Tran Duy Ly’s Seth Thomas book as being made ca. 1904. The movement is 8 day time and strike with inside escapement and is labeled 8 1/4 (this movement model was later called no. 89 and was made in several pendulum lengths […]

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Last updated November 28, 2009