Jump to content

Making Kundo Keninger & Obergfell clock works


Dick

Recommended Posts

I’m new here. I bought the anniversary clock and am trying to get it working. I observed the body of the clock the spring cable of the pendulum seem fine.
1. I tried to rewind the clock counterclockwise (not sure it is correct), the tension is so great and bounced back when releasing the key. 
2. Not sure if the spring for the clock body works since I’ve never heard any tick tock.

That was a start, any advices?

5166B846-1E57-44EB-85E5-52DB222BCAC5.jpeg

Link to comment
Share on other sites

This type of clock is the sort many clock repairers do not like to repair. The first thing I need to see is the suspension spring. That is the long thin wire at the back. I need to see the back plate and movement as well. Can you take good clear photos and post them.

Dick, as a new member we like new members to introduce themselves in the correct place in our friendly forum.

Thanks.

  • Like 1
Link to comment
Share on other sites

Hi Dick and welcome to the forum.  With 400 day/anniversary clocks there is no discernable  tick tock as on normal mechanical clocks, The mainspring is small but very powerful driving a clock such as these, The energy consumed by the clock when running is very small hence the name, It can run for 400days or be wound once a year (anniversary). The rotary pendulum hangs on a thin flat wire connected to the escapement fork which moves back and forth in tune with the pendulum releasing the escapement. These are simple to work on and a pain to set up and must be set dead level for them to work.  As mentioned we need pictures of the back plate to determine the model of the clock  Ok its a Kundo but there are different models of Kundo.      Cheers

Link to comment
Share on other sites

I have serviced/fixed many.400 day/anniversary clocks over the years. They are a real challenge because everything has to be perfect for them to run and are expected to run for 400 days with a single wind. The one thing that must be absolutely correct is the suspension spring. It must be perfectly straight with no kinks an also be the correct strength. If the spring is touch too strong or weak and you will just run out of adjustment. I really recommend this book which is my bible with these clocks.

Horolovar 400-Day Clock Repair Guide

Terwilliger (Charles)

  • Like 1
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • An incabloc spring? About 10p at the current price 🤣
    • Have you ever seen grease spread?  I use Molykote DX on the keyless, cannon pinion, etc and cannot imagine it spreading. Similarly, HP1300 should not be a problem, as long as you don't splash too much about.  9010 does like to travel though. I've recently re-serviced a couple of my watches I first serviced about 5 years ago. I was a bit too liberal with the oil and grease back then, but it hasn't spread everywhere. I only epilame on balance cap stones, escape wheel and pallet stones (and auto wheels if they need it).   If you use it all over, the oil might bead-up and travel even further - think of using RainX on your car windows.
    • Polish it where the old part cracked as well. Get rid of the stress-raisers.
    • Sounds great! And yes, I would use grease for the keyless as well although treating the parts with epilame would make the grease less likely to spread in the long run. Not critical but won’t hurt. My current strategy is to epilame treat all parts getting in contact with oil or grease.
    • Hello everyone, for what it's worth, here is my approach: 1. Escape wheel submerged in Epilame, then dried quickly with a hairdryer. Then the final tip of the pivots are cleaned by poking into pithwood. The logic being that the Epilame is removed at the intended contact point (to avoid any residue that may mix with the oil), but remains in the areas where oil is not supposed to spread to (further down the pivot towards the wheel). The escape wheel teeth also benefit from having Epilame to keep the 9415 in place.  2. I use a syringe to treat only the pallet stones. I suspend the pallet fork with some Rodico so that the stones hang downwards. I notably use a rather thick needle where a drop WON'T form, but rather where the Epilame liquid stays in the needle tip, which I then dip into the pallet stones. It requires some practice to get the right amount of Epilame into the needle tip, but it works for me now. This way, no drop will "jump" onto the pallet fork and potentially go all the way to the pivots.  3. I let the movement run for a few minutes without lubricating the pallet stones... to scrape off the Epilame in the intended contact "channel". Then I remove the balance again and lubricate the exit pallet stone with 3-4 successive drops. See the "channel" that forms on the pallet stone in the picture -- not so easy to see, but it's visible.       I am conflicted about the use of Epliame in balance jewel settings. My impression is that the two jewels sufficiently suspend the oil (even 9010). Apparently Rolex recommends NOT to use Epliame there (heard from a former Rolex service center watchmaker), as it could cause additional wear. Apart from that, I follow specific instructions where I can find them. E.g. the infamous Rolex reverser wheels or sometimes (parts of) the seconds wheel. Exception: I'm currently servicing an Eta 2824 and will probably ignore the service sheet that recommends treating the whole keyless works with Epilame and then using HP1300... I'll skip the Epilame and use 9504 grease.        
×
×
  • Create New...