Blocks and Fork
These are the Anniversary Blocks and Fork that need to go on to the suspension spring of an Anniversary clock.
The suspension spring is the most common thing that you will need to replace. They break and kink, which makes the rotation of the ball assembly cease to function. To replace the suspension spring, remove the old bottom block and top block along with the fork.
When the spring breaks it is not uncommon for the bottom block to go missing. It is always a good idea to have some extra bottom blocks on hand in case this happens. We carry all of these pieces and many other Anniversary clock necessities.
| Weight | 0.25 lbs |
|---|---|
| Type |
Top Block ,Bottom Block ,Fork ,Top Block Mini ,Bottom Block Mini ,5-Pack with Minis |

I have a Kundo 400 day anniversary clock that need a new escapment wheel and ancer.
Do you sell those?
Sorry do not
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I have a 400 day clock that is missing the lower block. How do I determine what size block it needs?
Any block will work, typically want the larger of the two sizes
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
Thank you, I also tried to order the suspension spring, but I after I used a digital caliper on the existing spring the size doesn’t seam to match what is available. What am I doing wrong?
What does the caliper say you need?
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
Thank you for your response. I figured out the problem and have ordered the parts.
Thanks again.
Great job
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I bought a fork , blocks and suspention springfor my 1950s Coca-Cola 400 day clock from you. The fork seems to not pinch the spring tightly enough to stay in place. ?? Also where should I start placement of the fork in reference to the wire the fork surrounds?
Should be a tight fit on that fork, maybe it is a defect. I will send a replacement fork, do not need that one back
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
James- I have a Schatz anniversary clock from 1949 that is missing the bottom block. Which block is correct- mini Or regular? The suspension spring measures at .006. Is that available? And of course the key is missing -I’m assuming a #8 for the German made square key. Sound right?
Thanks!
IF the clock is 10 inches tall or so, will take the larger block. If its like 6-8 inches tall, you may consider the smaller one, depends. .006 is pretty fat, I would recheck that measurement. Not sure on the key would have to measure the flats
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
Looking for a top block, bottom block and fork as well as a .0036″ (.091mm) horolovar spring for a Kern & Link 400 day clock.
We have 400 day help and troubleshooting at this link
https://www.clockworks.com/clock-repair/clock-repair-help-1.html
We have suspensions and parts at this link
https://www.clockworks.com/clock-parts/400-day-anniversary-clock-parts.html
James Stoudenmire
40yr Clockmaker
Author of Clockworks.com
I am trying to replace the spring, and I can’t get the screws out of the blocks. Is there a specific size screwdriver you recommend without striping the screwhead?
Has to be exact size of the width and thickness of the slot. Hold the block with needle nose. Its not so easy sometimes. Any kink at all in the new spring and it is no good. Best to have the bottom block pin, in a staking block with holes in it the size of the bottom block pin. Otherwise the thing will not sit flat. As stated if the suspension gets distorted, start over with a new spring. Its maybe why they come in a 3 pack, three chances to win
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Will the bottom block fit a Schatz 53 mini?
Yes, get the smaller one
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hi , do you have the weel for escape mecanism for Kundo 400 days clock???
Do not, no longer made. Best to get a junk movement from ebay.com
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
anchor for the schatz 400 49 day clock
Sorry do not have it, Best to find a junker unit on ebay
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Will this bottom block fit a Schalz 49 clock
Yes
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hi,
I lost the screw that secures the top block in my Kundo Standard 400 day clock with Backing Plate 1407B.
Do you have a replacement screw?
Thanks
Sorry do not
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Do you provide the small screws that hold the two bottom block plates together on the 400 hour clocks?
Do not
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Hello Clockworks,
I have an Anniversary Clock that I need help identifying with the hope of ordering parts. There is a logo on the back of a large “H” with a proceeding small “E” followed by another small “F”. The letters are circled by an escapement gear. If you have an idea what this might be, I need to order the top and bottom blocks, fork and torsion spring. If needed, I can send photos. The square plates are 70 mm wide by 90 mm tall. Thank you for any information!
Hi
We have 400 day help and troubleshooting at this link
https://www.clockworks.com/clock-repair/clock-repair-help-1.html
We have suspensions and parts at this link
https://www.clockworks.com/clock-parts/400-day-anniversary-clock-parts.html
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Just what i was looking for.
Can i just buy the bottom block for an anniversary clock suspension?
Yes you sure can at this link
https://www.clockworks.com/product/anniversary-clock-blocks-fork
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
I cannot tighten the an2-f fork you sent, tight enough to hold to the suspension spring. What can be done?
the old one was split all the way through to clamp the spring.
The fork must be a defect we will of course replace it with a different one.
I will send it right out
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
Got the new fork but it also lacks the ability to clamp tight enough to hold position on the suspension spring. What can I be doing wrong?
We have sent out a better one.
James Stoudenmire
30yr Clockmaker
Author of Clockworks.com
What thread are the 2 small screws that fit the Gustav Becker 400 day clock. I need one.
Found one, I think they are M1, head dia 2.53mm, thread length about 2mm. Note the head depth is less than 1mm.
Sorry do not have it
James
I need a bottom block and spring ( 20A assembly) for Herr Standard 54.
Hi
We have 400 day help and troubleshooting at this link
https://www.clockworks.com/clock-repair/clock-repair-help-1.html
We have suspensions and parts at this link
https://www.clockworks.com/clock-parts/400-day-anniversary-clock-parts.html
I need a top block fo a 3C spring assembly. Fits a Kundo Standard 55
Hi
We have 400 day help and troubleshooting at this link
https://www.clockworks.com/clock-repair/clock-repair-help-1.html
We have suspensions and parts at this link
https://www.clockworks.com/clock-parts/400-day-anniversary-clock-parts.html
Hi James I have a 400 day kundo that is missing fork and top block and the part that the top block attaches to the clock. What is that top part called and do you have it available?
Are the top block and the bottom block the same. I need the bottom block, but your choices are only for top block and fork.
Hi, The item Bottom Block was out of stock.
The item is back in stock.
Please see this link: Anniversary Clock Blocks/Fork – 400 Day Clock Parts – Clockworks – Clockworks
Thank you !
Clockworks Team
James Stoudenmire 30yr Clockmaker Author of Clockworks.com AWI / BHI / Lifetime NAWCC
http://www.clockworks.com 124 Goss Hill = UPS Mailing PO Box 339 = USPS Mailing Huntington, MA 01050 USA clockworks@clockworks.com
Virus-free.
http://www.avg.com
Virus-free.
http://www.avg.com
That was an error. Product is not updated to be in stock, please refresh to see changes https://www.clockworks.com/product/anniversary-clock-blocks-fork
James
Thank you !