Are kundo clocks still made?

Kundo is a trademark name of Kieninger & Obergfell, a long time German clock manufacturer. Key-wound 400 day clocks, such as this one, are no longer made. They were designed to be wound every 400 or so days, so owners typically wind them once every year on an anniversary date. The clocks are known for being reliable.

How do you wind a kundo clock?

Kundo 400 Day Clock Instruction Sheet ca. For the type of clock with pendulum locking device at the bottom rear of the movement. To wind this clock, put the key on the square and turn counterclockwise, 1/2 turn at a time. Release the key gently after each half-turn, don’t let let it snap back suddenly.

How does a 400 day clock work?

A 400 day clock has a torsion pendulum to make it run longer. A torsion pendulum hangs from a thin flat wire (called the suspension spring) and rotates in one direction and then the other, instead of swinging back and forth as a standard pendulum does.

What year was the kundo clock made?

Kundo anniversary clocks were first produced in 1923. This particular Anniversary clock was made in 1976.

When were kundo clocks made?

There were torsion clocks produced before 1900 but in limited numbers from about 1894 onward but the real push was after 1900. The Kundo model you see here was made in the late 1950s or early 1960s, probably the peak and subsequent decline of the anniversary clock era.

How do you set the time on a kundo?

Your clock should come fully wound, so to start it, simply swing the pendulum by gently touching it with your finger. Set the time by moving the minute hand around the face until the time is correct.

Why does my anniversary clock keep stopping?

The spring being bent is the number one cause for most of these clocks not working. First there is the brass bottom block that the Anniversary Clocks Pendulum balls attach to. Then in the upper middle of the spring there is the fork attachment that whacks the verge back and forth.

What is a kundo clock?

The Kundo Anniversary 400 Day Clock, made by German manufacturer Kieninger & Obergfell, was originally produced in 1923. The word anniversary symbolizes the idea that the clocks only need to be wound once a year on a meaningful date, such as the date you received the clock.

Who made kundo clocks?

When were kundo anniversary clocks made?

What is wrong with my Kundo junior clock?

These clocks move very slowly and in the case of this Kundo Junior, 10 beats a minute compared to 100 beats per minute or more on a typical pendulum mantel clock. Because the gears move slowly there is minimal wear on the gears and plates and it is very common to find these clocks with a broken suspension spring as the only thing wrong with them.

Do you love working on anniversary clocks?

Kundo 400 day oval anniversary clock – let’s get this thing working! Some clock repair folks (horologists) love working on anniversary clocks and some just cannot seem to bond with them. I am in the former camp that finds them intriguing and interesting to work on.

How do you install a 400 day clock with a pin?

Install the bottom block first. Attach the spring block to the 4 pendulum balls with the pin then lock the pendulum balls in place using the locking lever. Some 400 day clocks use a simpler bottom block solution that simply hooks the block into place. Because this one uses a pin it is a bit more frustrating.

How does a torsion pendulum clock work?

The torsion pendulum rotates about the vertical axis of the wire, twisting it, instead of swinging like an ordinary pendulum. These clocks move very slowly and in the case of this Kundo Junior, 10 beats a minute compared to 100 beats per minute or more on a typical pendulum mantel clock.