RSSCategory: 400 Day Clock Repair

Schatz Standard 400 Day Clock with Clear Leveling Discs

May 24, 2011 | By | Reply More
Schatz Standard 400 Day Clock with Clear Leveling Discs

This Schatz standard 400 day clock is dated 12 54 (December 1954) on the back of the movement. It has a beautiful silvered brass dial with engraved and filled numerals, minute track, and decorative patterns. The unusual feature of this clock is that it has clear leveling discs in the base. Usually they are brass, […]

Read More

Last updated August 31, 2011

Schatz Standard 400 Day Clocks – When in Doubt, Replace the Suspension Spring!

January 29, 2011 | By | Reply More
Schatz Standard 400 Day Clocks – When in Doubt, Replace the Suspension Spring!

A Schatz standard 400 day clock didn’t run well after repair. I had cleaned the movement and adjusted the fork on the suspension spring, yet the pendulum rotation was only about 3/4 of a turn with the mainspring fully wound. I installed a new mainspring, and the motion was slightly less. I polished the pivots, […]

Read More

Last updated August 31, 2011

Miniature 400 Day Clock by Edgar Henn

January 23, 2011 | By | Reply More
Miniature 400 Day Clock by Edgar Henn

This miniature 400 day clock is 8 1/4 inches tall without the dome. There in no name on the face. The back of the movement is labeled “Euramca”. The movement was made in Germany by Edgar Henn, and the “Horolovar 400 Day Clock Repair Guide” classifies this movement as plate 1088. It was made around […]

Read More

Last updated August 31, 2011

Schatz 1952 400 Day Clock – Unusual Styling Features

November 18, 2010 | By | Reply More
Schatz 1952 400 Day Clock – Unusual Styling Features

I recently repaired this Schatz standard 400 day clock dated 10 52 (October 1952).  It has several unusual styling features: The three finials are ball-shaped instead of spires, The base cup is scalloped instead of smooth, The 4 pendulum balls each have 4 ridges on top, The back plate and front plate have a cutout […]

Read More

Last updated August 31, 2011

Gustav Becker 400 Day Clock in Oak Case

September 14, 2010 | By | Reply More
Gustav Becker 400 Day Clock in Oak Case

This beautiful 400 day clock is unusual in having an oak case. The front door has beveled glass, and the rear door has plain glass. There is plain glass in the sides. The case is 12 5/8 inches tall, and 6 1/2 inches wide at the bottom. The clock has the “disc” type pendulum common […]

Read More

Last updated September 14, 2010

Some Schatz London Coach 400 Day Clocks Need A 0.0024 Inch Suspension Spring

July 19, 2010 | By | 3 Replies More
Some Schatz London Coach 400 Day Clocks Need A 0.0024 Inch Suspension Spring

The Horolovar 400 Day Clock Repair Guide specifies a 0.0023 inch thick suspension spring for the Schatz model 53 miniature movement. I just repaired one that ran too slow with a 0.0023 inch spring, so I installed a 0.0024 and it keeps good time (my repair job no. 5212). The pendulum looks normal, but perhaps […]

Read More

Last updated October 26, 2010

Kundo 400 Day Clock – Locking Suspension Guard

July 13, 2010 | By | 4 Replies More
Kundo 400 Day Clock – Locking Suspension Guard

The most delicate part of a 400 day clock is the thin wire called the “suspension spring” that holds the pendulum and controls its rotation. On many 400 day clocks, the pendulum can be locked in place for shipping and there is a metal or plastic guard to protect the suspension spring. On earlier clocks, […]

Read More

Last updated July 12, 2010

Koma Midget 400 Day Clock

July 10, 2010 | By | Reply More
Koma Midget 400 Day Clock

This midget 400 day clock was made by Koma (Konrad Mauch) in Germany in the late 1950s. It is 7 1/16 inches tall (to top of finial) and 4 11/16 inches wide. The dial diameter is 2 15/16 inches (including bezel). The pendulum on this clock turns much faster than that on many 400 day […]

Read More

Last updated July 12, 2010

Schatz Standard 400 Day Clock with No Name on Dial, ca. 1950

July 7, 2010 | By | 4 Replies More
Schatz Standard 400 Day Clock with No Name on Dial, ca. 1950

This Jahresuhrenfabrik (Schatz) standard 400 day clock, was made around 1949 – 50, and has no name on dial. The minute track of the dial is 3 9/16 inches in diameter. The movement is labeled Jahresuhrenfabrik, and this company was renamed Aug. Schatz and Sohne around 1950 (the Jahresuhrenfabrik name continued to be used on […]

Read More

Last updated May 24, 2011

Jahresuhrenfabrik Disc Pendulum 400 Day Clock, ca. 1912

July 5, 2010 | By | Reply More
Jahresuhrenfabrik Disc Pendulum 400 Day Clock, ca. 1912

This Jahresuhrenfabrik (German for “Year Clock Company”) 400 day clock has the serial number 112975 on the back plate and was made around 1912. The diameter of the dial minute track is 2.5 inches. (Earlier clocks often have a smaller dial, whereas later, 1950s clocks have a larger dial, typically with a 3 9/16 inch […]

Read More

Last updated May 24, 2011

Schatz Miniature 400 Day Clock, March 1956

June 29, 2010 | By | Reply More
Schatz Miniature 400 Day Clock, March 1956

A couple brought in this clock that they received it as a wedding gift over 50 years ago. They told me that the clock was put away in its box and was forgotten until recently. I disassembled and cleaned the movement. The only problem found was that the pendulum hook had come unscrewed. This clock […]

Read More

Last updated June 27, 2010

Schatz “London Coach” 400 Day Clock, April 1960

June 28, 2010 | By | 1 Reply More
Schatz “London Coach” 400 Day Clock, April 1960

This beautiful little clock was given to my customer’s mother in 1960, but it never worked for more than 5 minutes. It spent its life sitting idly on a shelf, and was given to my customer recently. I disassembled the movement and cleaned it. A couple of the pivot holes were slightly too tight, and […]

Read More

Last updated June 27, 2010

Schatz Standard 400 Day Clock with Missing Pendulum Weights!

June 2, 2010 | By | Reply More
Schatz Standard 400 Day Clock with Missing Pendulum Weights!

This was a routine repair job, until I tested the accuracy of the clock. It ran way too fast (with the correct suspension spring, properly adjusted). I was puzzled, then had the haunch that something was wrong with the pendulum. I removed the 4 brass ball covers, and found that only 2 of them had […]

Read More

Last updated June 1, 2010

Schatz Standard 400 Day Clock, ca. 1950 with Badly Broken Mainspring!

May 31, 2010 | By | Reply More
Schatz Standard 400 Day Clock, ca. 1950 with Badly Broken Mainspring!

This Schatz 400 day clock came into my shop for repair. The customer told me that it had a broken mainspring. On disassembly, I found that the mainspring was broken in more than 15 pieces! (Normally, a mainspring has just one break). See photos below: What caused the spring to break into multiple pieces? The […]

Read More

Last updated May 29, 2010