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Commentary about clock repair and clock history from Bill’s Clockworks and ClockHistory.com

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Kundo Miniature 400 Day Clock Similar to a Schatz London Coach

February 22, 2010 . by Bill

This Kundo miniature 400 day clock from the 1950s has a case similar to the Schatz “London Coach”. it is 8 1/4 inches tall (including finial). The side panels and rear panel are glass with a molded pattern. The front panel is plain glass.

I cleaned the movement, straightened the hand shaft and replaced the mainspring (the old mainspring had been cleaned in the past without removing it from the barrel and it had corrosion marks). Also, the suspension unit was not quite long enough.

Below are some pictures, there are more on my Picasa web album.

Here is a video:

Job 5108. Horolovar back plate no. 1379A.

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Kundo and Welby Standard 400 day Clocks with Large Dial

February 13, 2010 . by Bill

These 2 clocks have large dials with 3 5/8 inch time track (the standard dial has 3 1/4 inch time track). They have attractive skeleton hands. Kundo made both clocks. The left one says “Welby” on the dial and movement.

The left one has the type of pendulum used for many years (it has a slot in the top part of each pendulum arm). The right one has the later type of pendulum without slots in the arms (I wonder if it originally had the earlier type).

The left clock has the longer, earlier type of movement mounting nuts (visible beneath the platform). The right clock has the later type of short mounting nuts.

Kundo used 2 methods to mount the dial to the movement. Earlier dials have taper pins through posts. Later dials have rotating fasteners. The photos below show both types.

Here is a video of these clocks:

Repair jobs 5079 and 5100.

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DeBruce 400 Day Clock by Kundo, 1950s

October 22, 2009 . by Bill

This 1950s 400 day clock is labeled DeBruce on the dial and Royce Watch Co. on the back plate. It was made by Kundo and is the same as a Kundo standard 400 day clock except for the names. It has the Kundo logo on the back plate. Horolovar back plate no. 1499. It uses .0032 inch thick suspension spring.

Repair job 5009.

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Kundo Miniature 400 Day Clock (4810)

March 3, 2009 . by Bill

I recently repaired this Kundo miniature 400 day clock with a pretty gold colored metal dial. The movement needed cleaning and a new suspension spring. The pivots and pivot holes were in good condition.

Here is a movie of the escapement in operation:

Here is a slide show showing the complete clock, and the gears in place before the back movement plate was put on:

Repair job 4810.

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Kundo Standard 400 Day Anniversary Clock

January 30, 2009 . by Bill

I just repaired this Kundo standard 400 day clock. Below is a photo of the gears and anchor before the back plate was put on, photos of the complete clock, and videos of the escapement and the complete clock.

Job 4779

Back plate: 1004
Suspension unit: 3C
Suspension spring: 0.0032 inches

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Kundo “Louvre” Style 400 Day Clock

. by Bill

I recently repaired this beautiful clock. It is 15 inches tall (not including the glass dome), and uses a Kundo standard 400 day clock movement.

Job 4777

Back plate: similar to 1367 but has no text, just the logo
Suspension unit: 1
Suspension spring: 0.0032 inches

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Kundo Miniature 400 Day Clock

January 24, 2009 . by Bill

Here is a Kundo miniature 400 day clock that I just finished giving a general service and repair. The pivots were in good condition, but it needed cleaning and a suspension spring replacement.

The photo below shows the gears and anchor before the back plate was put on, and the complete clock:

Here is a video of the pendulum motion when the clock is fully wound:

Here is a video of the escapement action:

Job 4773

Back plate: 1406H
Suspension unit: 5E
Suspension spring: 0.0023 inches

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