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KIF shock springs


ifibrin
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I was going to buy some KIF shock springs to add to my inventory, but I realized that there are some additional KIF shock springs listed that are available on cousinsuk that don’t appear in their guide, or on other material houses, such as KIF 1-5 and KIF 1-7. Does anyone have any idea what they are? As far as I can tell KIF 1-X are the Trior types.

E82EE647-C17C-4F58-9AD7-5939099CEDC4.jpeg

E43588FC-542F-4C61-BFE6-97B7C24CB235.png

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I've bemoaned on another KIF related thread the fact that the documentation available on the company's website (https://kif-parechoc.ch) is lamentable.

I can tell you a 1-7 was commonly used by Hanhart though.

In that regard you'll probably have more luck in rounding out your KIF knowledge by looking at the movement manufacturer specific documentation on Cousins.

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I purchased all the different 1-X KIF trior springs, and will report back when the shock springs arrive. I also asked cousinsuk, and they are asking their supplier about what the difference is.

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The Kif table shows the Trior springs as having narrow, formed lugs.

Cattura.PNG.011b6510fd4918d0ebafbadb9b95ac40.PNG

Bun in the OP pictures these are shaped differently, being a wider tab with the inner contour following the outer one.
Looks like the wider tab could not fit a setting block machined for the first. Does anyone know what is the full story here?

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20 minutes ago, jdm said:

The Kif table shows the Trior springs as having narrow, formed lugs.

Cattura.PNG.011b6510fd4918d0ebafbadb9b95ac40.PNG

Bun in the OP pictures these are shaped differently, being a wider tab with the inner contour following the outer one.
Looks like the wider tab could not fit a setting block machined for the first. Does anyone know what is the full story here?

I think only in the 1-2 are there narrow and formed lugs. In the 1-4 onwards, theres a wider tab with an inner contour.

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I asked Cousins for better documentation and after much insistence with their supplier (which clearly isn't the manufacturer) that is the answer they got and shared with me:

I just learned that the last paper catalogue was 1978 and this one is no more available. I have tried to look for more details on the Web, without success. Just note that 99.99% and even more of the production goes to Swiss watch manufactures.

In my opinion this lack of care for anyone except their local and consolidated customers is another demonstration of ottusity and contempt by the Swiss industry. At least in this case we are able to figure out things ourselves anyway.

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1 hour ago, jdm said:

I asked Cousins for better documentation and after much insistence with their supplier that is the answer they got and shared with me:

I just learned that the last paper catalogue was 1978 and this one is no more available. I have tried to look for more details on the Web, without success. Just note that 99.99% and even more of the production goes to Swiss watch manufactures.

In my opinion this lack of care for anyone except their local and consolidated customers is another demonstration of ottusity and contempt by the Swiss industry. At least in this case we are able to figure out things ourselves anyway.

Is this 1972 book of any use? It's similar to the Incabloc one where it cross references calibers to the relevant settings.

IMG_20211014_165904.thumb.jpg.b475af0fe80fba5e9f8b5c0ee3305450.jpg

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1 hour ago, Plato said:

Is this 1972 book of any use? It's similar to the Incabloc one where it cross references calibers to the relevant settings.

That's great of course. If isn't available already some saint should take the time to digitize and share it.

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Thanks to @Plato for digitizing the KIF catalogue! After looking through the catalogue, I have come to the conclusion that KIF 1-7 is very similar in size to KIF 1-4, and may different only in thickness, or slightly in radius. There is no mention of KIF 1-5 in the catalogue, and it may just be a different color variant of KIF 1-4 or KIF 1-5, but I have no way of confirming this. The best way to identify the different KIF 1-X variants is to sort them by the cap jewel size (contre-pivot); the sizes of the shock block, or the hole jewels as indicated by Φ doesn’t seem very reliable as it seems the same shock spring can use a variety of shock blocks and hole jewels of different size. The only consistent measure of the shock spring is which cap jewel it is paired with, which makes sense as the shock spring directly contacts the cap jewel.

In the case of KIF 1-4 and KIF 1-7, they are all paired with cap jewel 517, the largest size cap jewel. KIF 1-2 is paired with 515, and KIF 1-3 is paired with 516.

KIF 1-7 is quite a rare shock spring used, and I have attached all mention of it in the catalogue below:A40EEB06-EE91-49EC-A9EB-D5D24E03BC6E.thumb.jpeg.012445bc5c66ef394eae05e0fdb99e41.jpeg

821C315F-D04B-423F-94FA-F2CF6B87A202.thumb.jpeg.c5d7959791404558c57d073f5817cd7a.jpegE5245A38-4433-4152-984F-D0F79F4904E3.thumb.jpeg.ce47ee8ce195c48198d9505a419f6b4d.jpeg

BA405ED4-6294-4791-BD59-FAFB983B287A.thumb.jpeg.a7c1d158aeb9740b089b65df52b40a70.jpeg D3948FEE-1120-48D5-B304-61C9CD2C5485.thumb.jpeg.b2f68ebc3981f30158b786405e2f30d1.jpeg

 

As compared with KIF 1-4, you can see that they all share the same cap jewel:2C63B011-42A1-46B0-A071-B4F7D9D7AE66.thumb.jpeg.d3c4d197dd7bbe78f3f535e534b8d15f.jpeg1DABFC2D-59EA-48B4-B393-ABBD1E80ECDD.thumb.jpeg.5bd5d9f45aca80dc92b0a3b9f60623ba.jpeg8400AE60-E7D9-4C76-BD0C-4F11E1A83D98.thumb.jpeg.ff5492e1c12e502091474efb3e7669cd.jpegCF7E6933-ABBF-42D1-86B4-93508088B25F.thumb.jpeg.238f7f03b199fd748da5c905a740157c.jpeg240A5F85-9F01-4FCA-A71D-F74F09CA6C55.thumb.jpeg.7314fa830387867214b0801f1fc5abbc.jpegC9DA2243-F27C-4E14-A71B-EDE79CB4CE46.thumb.jpeg.1648f8275b2a5b1e17eeba8503216c6e.jpeg3172F27B-A505-4120-9D9B-9D2D5AD47FB7.thumb.jpeg.a65633ea67ac0cff43972d4ee7a92219.jpeg72F04D6E-7C67-481B-B51B-299E3E86A409.thumb.jpeg.7436a95e8f2748b9123e2919b05c30ce.jpegEEEAEAD4-FAB8-4331-A8C7-66027D88063A.thumb.jpeg.f315f15809ce149cc40cf594355f0bc9.jpeg9424D7BB-F4B6-4DE4-87F7-7663E44AF8E4.thumb.jpeg.937e5e24579df2311edd4cbf6b577b4b.jpeg8945C391-100B-432A-9BDB-937D31F69CCA.thumb.jpeg.fa736ee534a8d96ff9b2c229db83c267.jpeg421E91DD-224F-438B-A533-41E04DC9F783.thumb.jpeg.161dfa93b844322f003492a4fc9a6e28.jpeg7BB8E1BC-30E6-4F70-B742-5BF9EB02C171.thumb.jpeg.e911ebe5325a9ec95541b3b544ac2775.jpeg1263CB7D-EC7B-4D02-A0B3-115243C4B22F.thumb.jpeg.c0b12a300dca086f78bae9c9d19a35e8.jpeg

4DA80B6C-85A0-4FCF-B240-2F2244C6EACC.thumb.jpeg.2ee91824f6d82f9e3e2e12809a9e69cb.jpeg

 

 

 

Edited by ifibrin
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