Jump to content

Cap jewel spring advice needed


ftwizard

Recommended Posts

Looks like a Seiko main plate in which case it's  Diafix rather than Duofix, but it's essentially the same. 

Don't take the spring out though. Once you have got the tail free it hinges up in its setting around the arms allowing the stone to be removed with the spring still captive. 

Link to comment
Share on other sites

Hate those? Need one or two?  I have a few on some old movements? Need to be careful with them. I never remove them unless i have to? Just clean and oil before i put thing together again. You must at least have 3 hands to put them back?

  • Like 1
Link to comment
Share on other sites

The larger of the two shocks is removed in a twist movement. You can purchase a tool for the kif style one of these which I do own. However I also made one out of peg wood which works really well. I dare say you could do the same for that one as well.

Link to comment
Share on other sites

Hate those? Need one or two?  I have a few on some old movements? Need to be careful with them. I never remove them unless i have to? Just clean and oil before i put thing together again. You must at least have 3 hands to put them back?

I would be grateful for a couple if you have them. Now I know how to fit them, I might have a little more success.


Sent from my iPhone using Tapatalk
Link to comment
Share on other sites

They are a little tricky to install? I put the arms in first. And then press back on the middle arm until i can press it down under back under the lip? I use a screwdriver to press down with? See if i can take some pictures? 

Send me a PM and i post some? 

Link to comment
Share on other sites

I was putting the single end in first and then trying to bend the legs into the slot. I did the one in the base plate OK, but the one in the bridge plate was a pain. Although it is in position, I think it's bent and isn't all that secure.

I've tried to PM you, but it won't let me send. Says "rogart63 can't receive messages"

Edited by ftwizard
Link to comment
Share on other sites

On February 13, 2017 at 4:57 AM, ftwizard said:

 

Does anyone know the correct method to remove and refit the cap jewel spring for the smaller of the two pictured?IMG_1437.JPG

 

 

Sent from my iPhone using Tapatalk

 

How do you remove the larger spring? It looks like a Novodiac spring but it only has one opening in the cleat/lip/dag - or whatever - instead of 3.

I was told that one uses a very small oxy-acetaline torch to cut each of the tabs off and then you use a small arc welder to put them on again. It's probably true too...

Dave

Link to comment
Share on other sites

30 minutes ago, Folkvisor said:

How do you remove the larger spring? It looks like a Novodiac spring but it only has one opening in the cleat/lip/dag - or whatever - instead of 3.

I was told that one uses a very small oxy-acetaline torch to cut each of the tabs off and then you use a small arc welder to put them on again. It's probably true too...

Dave

Yep, that's the way I did it........:D

Link to comment
Share on other sites

23 hours ago, rogart63 said:

Click on full size pictures and see how i open it? Second picture? Put it back the opposite way? I think you can find a Seiko manual for it? 

http://www.thewatchsite.com/12-reference-articles-faq-model-guides/12386-diashock-diafix.html

Thanks Rogart for the link . It will help many watch enthusiasts since a lot of pdf show how to disassemble and oil

  • Like 1
Link to comment
Share on other sites

Large spring.. these are different from the Novodiac in the sense that there's only one slot to feed a leg at a time.  What I do is get one leg in the groove, one in the gap and one over. Rotate the spring so that the leg above the groove moves towards the gap. Once its in the gap, press it down with pegwood and rotate. When rotating the spring, it helps if you push on the side away from the gap as well. Pretty difficult they first few times but it gets easier.

The novodiac has 3 legs and 3 slots, requiring a tool to push them down simultaneusly, hence the need for the tool. You can make one by shaping one end of pegwood to fit the outer dia. of the setting and hollowing the inside a bit to clear the jewel.

Small spring.. when removing, insert a small sharp pointed thing in the little gap visible next to the middle leg. Apply just enough force to allow the middle leg to escape.. it will spring up a bit.. move the whole spring in the direction the middle leg is pointing, the cap jewel can then be removed. When installing, fit the cap jewel and bring back the spring into its original position. use your pointy tool to bring the spring far enough so that you can use another tool to push the middle leg down to the level of the groove. Release pressure so the spring can go back to its original position. The danger here is to move the spring too far back. The springs are made of thin metal and will not tolerate to much bending. Once bent they pretty useless, even if you bend it back into its approximate original shape they've lost their temper(springiness?!).

Anilv

  • Like 1
Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • I often get an amp drop after i oil the stones with 9415, not sure what difference can be achieved with oiling the teeth.  I guess the oiling surface is very small on a tooth as opposed to on the stones a larger drop might have more drag as the teeth plow through it. I oil with a bristle from a brush now, strangely enough the last movement i oiled five escape teeth and the amp was much higher than i usually get , coincidence ?
    • Who'd have thought to look at the supposed compatible calibres ?  🤔 Frank did 😅
    • I recently helped my mentor to service 7 Seikos and he told me not to lubricate the pallets. His reason was from his experience from the advanced classes that he conducted, his students all ended up with worse amplitudes after oiling the pallets. I have to admit that I had the same problem when I oiled the exit jewel, like so many videos on YouTube show. I actually ended up with worse amplitude.  But now I oil the escapement by oiling the teeth of the escape wheel. I think Rolex used to train their technicians this way. I find that I get about 20° -40° increase in amplitude oiling the escapement this way. I've only started playing with epilame recently. I got a bottle from a Chinese seller on AliExpress. It's supposed to be Episurf Neo but everything on the bottle is in Chinese. When the bottle arrived, half of it had evaporated or leaked. And when I brushed on a thin layer on a mirror, it dries rather slowly and even feels a bit tacky. When I did the oil spread test, like my experience with stearic acid, the treated and untreated surface of the mirror yielded similar results. The contact angle of the oil drop looked about the same for both the treated and untreated surface. When I epilamed an actual pallet fork, the escapement was so sluggish that I couldn't even get 180° amplitude. I dunno if I got conned by the seller but the results are just not convincing.
    • I usually just use 2 pair of pliers to remove the roller ( just kidding  🤔 )  I want one,I have an adjustable free standing one. But i really like the little bradux tool that nips under the roller with two tapered jaws that lift it off. You can get under a scope with it to see in detail how the job is going. There is some technique involved to stop you chopping the staff, doesn't particularly matter if the staff is already broken but it naffs up the tool's jaws if you crunch the staff, and the jaws need to be in good shape to prevent damaging the roller. But well worth a try if you've never used one and you can find one that hasn't been misused or buy a one new. The trick is to keep one of your fingers between the two arms to soften the squeeze, with a little practice its a handy little to. I will now prepare myself for an onslaught of negative feedback on it 🤣
    • With luck even possible to fit your 13 lin. movement at all 😀. Those numbers are from 5 1/4, 8 3/4 and 13‘‘‘ sizes, with very different balance wheels! Frank
×
×
  • Create New...