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77.303 Mainspring from R & M Imports

September 15, 2007 | By | Reply More
77.303 Mainspring from R & M Imports

In previous posts, I mentioned the R & M No. 77.303 mainspring as being about .014 inch thick. These thin springs can be identified by having the number 37 on the loop end (which means 0.37 millimeters which equals 0.0146 inch). I received a new batch of these today, and the number on the loop […]

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Last updated November 27, 2009

Seth Thomas Giant No. 1

September 10, 2007 | By | 1 Reply More
Seth Thomas Giant No. 1

I just overhauled a Seth Thomas “Giant No. 1”, having an oak case 25-1/4 inches tall (job no. 4433). The movement is marked “8 1/4” but it is the same movement later called No. 89. It has between-the-plates escapement, and the plates measure 5-5/8 inches tall and 3-5/8 inches wide. According to a repair label, […]

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Last updated October 11, 2012

Mainsprings for Seth Thomas No. 89 Movements

September 10, 2007 | By | Reply More
Mainsprings for Seth Thomas No. 89 Movements

So far, the .0155 inch to .0158 inch thick mainspring has been perfect for the time train. For the strike train, it is satisfactory, but the striking speed may be too slow to suit some people. On a ST “Giant No. 1” oak shelf clock I am currently repairing, I am going to try an […]

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Last updated November 28, 2009

New Haven Oak Kitchen Clock

September 9, 2007 | By | Reply More
New Haven Oak Kitchen Clock

I just finished a New Haven oak kitchen clock (my job no. 4333). The movement has 4 pillars and the dimensions are 4-9/16 x 3-1/4. The time mainspring is held by a separate short pillar attached to back plate. This movement has thin springs for time and strike. The two springs are both old but […]

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Last updated November 27, 2009

A Cheap (But Costly) Repair Job

September 3, 2007 | By | 1 Reply More
A Cheap (But Costly) Repair Job

A customer brought me a beautiful E. N. Welch walnut kitchen clock he had just purchased at an auction. It had a fantastic original painted dial, a great looking nickel plated bezel, and a pretty case that just needed cleaning. I examined the movement and said that it needed to be overhauled because one of […]

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Last updated September 10, 2007

Ansonia Iron Mantel Clock

August 31, 2007 | By | 2 Replies More
Ansonia Iron Mantel Clock

I just completed the overhaul of an Ansonia iron cased mantel clock (my job no. 4422). It has the common 4 pillar 8 day time and strike movement of dimensions 5 x 3-1/4 inches. In this clock, a previous repairer had replaced the srike mainspring with one that is 3/4 inches wide and .018 inches […]

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Last updated November 27, 2009

Ansonia Walnut and Oak Shelf (Kitchen) Clocks

August 29, 2007 | By | 4 Replies More
Ansonia Walnut and Oak Shelf (Kitchen) Clocks

I just overhauled an Ansonia oak shelf (kitchen) clock (my job no. 4357). It has the 4 pillar 8 day time and strike movement of dimensions 5 x 3-1/4 inches. The original mainsprings in these clocks are 3/4 inch wide and typically about .0155 inch thick. The previous repairer had installed a time mainspring .0185 […]

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Last updated November 27, 2009

New Batch of Merritt’s Clock Mainsprings

August 27, 2007 | By | Reply More
New Batch of Merritt’s Clock Mainsprings

Merritt’s Antiques has the P1496 mainspring in the red, orange and yellow box again! Last week I received 12 of them. I took two springs, measured them to be .0158 inches thick, cleaned and lubricated them, and installed them in a Seth Thomas 89C movement in an Adamantine mantel clock (my job no. 4396). These […]

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Last updated November 27, 2009

American Clock Cleaning

August 23, 2007 | By | 1 Reply More
American Clock Cleaning

After a clock movement has been repaired, it should look like it has always been well taken care of, and not show obvious signs that it has been “repaired”. As part of this, the cleaning process should not be harsh. For typical American antique clocks, I use “Historic Timekeepers” cleaning fluid (available from Timesavers as […]

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Last updated November 27, 2009

Early Revere mantel clock striking too many times

August 15, 2007 | By | Reply More
Early Revere mantel clock striking too many times

This note concerns a Revere A/C electric mantel clock with 60 RPM Telechron motor (yes, 60 RPM or 1 revolution per second) made in the late 1920’s. The movement is 5-3/8 inches tall and 5 inches wide and is labeled on the back: 1334428 1615664 PATENTS PENDING REVERE CLOCK CO. CINCINNATI O. This movement relies […]

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Last updated November 27, 2009

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

New vs. Old Anniversary Clocks

August 2, 2007 | By | 2 Replies More
New vs. Old Anniversary Clocks

A man came into my clock shop, and was carefully looking at my 1950’s German anniversary clocks. He asked the price of a Kundo miniature 400 day clock, and I said it was $50 as-is or $325 restored and guaranteed. He asked the price of several similar clocks, and then he said “your prices are […]

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Last updated November 28, 2009