Lost the cap jewel for cal 30110

[bjoe9]

So I’ve lost the cap jewel for the main plate side of the incabloc. Trying to find a suitable replacement. I understand this is an eta 2892 based movement. Can I use the same part and where can I source one? 

[mikepilk]

From Cousins site you can download Pdf's for Incabloc. Looking in the ETA document

The cap jewels (Pierre de c. pivot) are the same upper (dessus) and lower (desous) 122.11

https://www.cousinsuk.com/product/inca-end-stones

Unfortunately out of stock, but they usually restock pretty quickly. These are common parts, so worth having a few in stock.

Edited September 4, 2024 by mikepilk

[Neverenoughwatches]

2 hours ago, bjoe9 said:

So I’ve lost the cap jewel for the main plate side of the incabloc. Trying to find a suitable replacement. I understand this is an eta 2892 based movement. Can I use the same part and where can I source one? 

Something that i started doing some time ago was preempting a loss and measuring the capstone before working on it. The diameter you can grab from the chaton but get the thickness wrote down just in case. 

[mikepilk]

I notice that the Cousins Documents for Incabloc doesn't list ETA movements. A better list can be found on the Incabloc website https://www.incabloc.ch/en/shock-absorbers/   Half way down the page on the right, select "PRODUCT CATELOGUE", then select "Spare parts catalogue". 

[Nucejoe]

 Hey,

Me too , used to lose capstones at least one a day.

You sound good at it too . lol 

Inspired by  this guy   ,    I spread a transparent plastic sheet over the guy, before butchering start.

Rgds

[Neverenoughwatches]

16 minutes ago, mikepilk said:

I notice that the Cousins Documents for Incabloc doesn't list ETA movements. A better list can be found on the Incabloc website https://www.incabloc.ch/en/shock-absorbers/   Half way down the page on the right, select "PRODUCT CATELOGUE", then select "Spare parts catalogue". 

I only discoved that a couple of months ago, its a nice well designed site.

[ColinC]

I read a trick somewhere... get yourself a UV torch.  The cap stones should shine brightly under UV.  So if you are lucky you should just be able darken the room and wave the torch around until if jumps out at you!

[mikepilk]

9 hours ago, Neverenoughwatches said:

Something that i started doing some time ago was preempting a loss and measuring the capstone before working on it. The diameter you can grab from the chaton but get the thickness wrote down just in case. 

Why are you losing the stones RIch?  I haven't lost one for quite a while (tempting fate). I don't put them in the ultrasonic baskets any more - too hard to find them! I use an old contact lens case, so I can keep the top and bottom jewels separate. A drop of cleaning solution and a minute floating in the ultrasonic, rinse in IPA and done.

Yes, they do shine nicely under UV. The last one that pinged off, I found with a UV torch.

[Neverenoughwatches]

3 minutes ago, mikepilk said:

Why are you losing the stones RIch?  I haven't lost one for quite a while (tempting fate). I don't put them in the ultrasonic baskets any more - too hard to find them! I use an old contact lens case, so I can keep the top and bottom jewels separate. A drop of cleaning solution and a minute floating in the ultrasonic, rinse in IPA and done.

Yes, they do shine nicely under UV. The last one that pinged off, I found with a UV torch.

I dont lose them Mike, i dont think i ever have tbh not permanently anyway, just a fail safe idea. I only clean by hand and wait until they are ready to be reinstalled.

[bjoe9]

On 9/4/2024 at 12:46 AM, mikepilk said:

From Cousins site you can download Pdf's for Incabloc. Looking in the ETA document

The cap jewels (Pierre de c. pivot) are the same upper (dessus) and lower (desous) 122.11

https://www.cousinsuk.com/product/inca-end-stones

Unfortunately out of stock, but they usually restock pretty quickly. These are common parts, so worth having a few in stock.

Thanks . They are in stock now. I’ve ordered these. Hopefully these will work out 

[bjoe9]

On 9/7/2024 at 4:00 PM, bjoe9 said:

Thanks . They are in stock now. I’ve ordered these. Hopefully these will work out 

So i received these end stones... they do not fit in the chaton.. endstone too big

[JohnR725]

13 hours ago, bjoe9 said:

So i received these end stones... they do not fit in the chaton.. endstone too big

On 9/3/2024 at 11:15 PM, bjoe9 said:

understand this is an eta 2892 based movement. Can I use the same part and where can I source one? 

the problem of watch companies modifying base movements are we do not actually know what they have modified. So assuming that parts will interchange can always be as you've discovered a bad assumption as they may not fit at all.

perhaps a measurement is in order as we may be able to figure out what it really is. Then I'm assuming it does not fit because it's too large?

 

https://watchbase.com/iwc/caliber/30110