RSSCategory: 400 Day Clock Repair

Jahresuhrenfabrik 400 Day Clocks with Smaller Disc Pendulum

May 13, 2015 | By | 1 Reply More
Jahresuhrenfabrik 400 Day Clocks with Smaller Disc Pendulum

Three matching Jahresuhrenfabrik (JUF) 400 day clocks ca. 1910 were in my shop at the same time. They have a smaller disc pendulum and thinner suspension spring than many JUF 400 day clocks, and date from around 1910. Many JUF disc pendulum clocks use a 0.004 inch thick suspension spring, but these 3 clocks have […]

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Last updated May 10, 2015

Schatz Midget 400 Day Clock Made in 1962

May 11, 2015 | By | 5 Replies More
Schatz Midget 400 Day Clock Made in 1962

Schatz made 3 sizes of 400 day clock: Standard, Miniature and Midget. The Standard 400 day says “49” on the back inside a circle, the miniature says “53”, and the midget says “JUM/7”. Can anyone tell me what “JUM/7” means? The midget 400 day clock is slightly shorter than the miniature. I recently repaired a […]

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Last updated May 9, 2015

Jahresuhrenfabrik 400 Day Clock ca. 1902

May 9, 2015 | By | 4 Replies More
Jahresuhrenfabrik 400 Day Clock ca. 1902

Here is a Jahresuhrenfabrik (JUF for short) 400 day clock made around 1902. It has a disc pendulum, small dial, and delicate spade hands. It has beautifully turned finials above the dial. I repaired this clock, and fixed some problems caused by previous repair work. The picture below shows the mainspring after removal from the […]

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Last updated May 9, 2015

Kern Standard 400 Day Clock with Zodiac Dial

February 25, 2015 | By | 2 Replies More
Kern Standard 400 Day Clock with Zodiac Dial

Here is an interesting Kern 400 day clock with the signs of the Zodiac around the center of the dial. I overhauled the movement, replaced the suspension spring, and polished and lacquered the base and pillars. I don’t receive as many Kern 400 day clocks for repair as Schatz and Kundo clocks. I’m guessing this […]

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Last updated February 23, 2015

Kienzle Disc Pendulum 400 Day Clock

August 17, 2014 | By | 2 Replies More
Kienzle Disc Pendulum 400 Day Clock

Here’s a great old 400 day clock that I recently repaired. It was made by Kienzle in Germany around 1905. It has a “disc” pendulum, consisting of a round brass-covered iron disc, with 2 weights on top that you screw in or out to regulate the timekeeping. The dial is enamel with spade hands. See […]

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Last updated August 17, 2014

Schatz Standard Ivory and Brass 400 Day Clock with No Name or Date, made about 1949

June 8, 2014 | By | 2 Replies More
Schatz Standard Ivory and Brass 400 Day Clock with No Name or Date, made about 1949

I repaired this “Jahresuhrenfabrik” or “Schatz” 400 day clock recently. There is no name on the dial, and no date code on the back of the movement. The movement has the earlier type of motion work under the dial. These features are found on clocks made around 1949. The case is brass with ivory color […]

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Last updated June 8, 2014

Maroon Schatz 400 Day Clock, Diamond Dial with Japanese Lanterns

May 31, 2014 | By | 1 Reply More
Maroon Schatz 400 Day Clock, Diamond Dial with Japanese Lanterns

I think this is among the prettiest 400 day clocks ever made. The case is maroon and brass, and the dial has a picture of 2 people lighting Japanese lanterns. I illustrated the same model before (see Schatz Painted 400 Day Clocks with Diamond Dial), but I like them so much I posted this one […]

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Last updated May 30, 2014

A Kundo Standard 400 Day Clock That Gave Me Trouble!

May 30, 2014 | By | 9 Replies More
A Kundo Standard 400 Day Clock That Gave Me Trouble!

This is an ordinary Kundo standard-sized 400 day clock made in the 1950s. Normally, I go through my standard repair process, and the clock works well. This clock didn’t work well after repair. It ran, but the pendulum rotated only about 3 balls (where 4 balls is one full turn), and sometimes it would stop. […]

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Last updated May 30, 2014

Schatz 1000 Day Clocks Have Excellent Mainsprings

November 9, 2013 | By | Reply More
Schatz 1000 Day Clocks Have Excellent Mainsprings

I recently repaired a Schatz 1000 day clock made in 1960. As I removed the mainspring from the barrel, I realized how excellent this mainspring is. It opens very far, showing no sign of fatigue. In fact, nearly every 1000 day clock I’ve repaired has a similar spring. A mainspring like this will last for […]

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Last updated November 12, 2013

A 1950s Kundo 400 Day Clock Before and After Polishing

October 18, 2013 | By | 4 Replies More
A 1950s Kundo 400 Day Clock Before and After Polishing

I just repaired this 1950s Kundo 400 day clock. The photos below show the case before and after polishing and lacquering. Repair job  6217. Movement overhauled, 2 pivots polished, suspension spring and mainspring replaced. Horolovar back plate no. 1377. 0.0032 inch thick suspension spring. See more photos. Share this post:

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Last updated October 18, 2013