Jump to content

Loose Cannon Pinion Or Loose Hands?

fuse63

By fuse63
in Watch Repairs Help & Advice

 Share

Recommended Posts

fuse63 Watch Enthusiast

fuse63

Posted
Posted

So im working on an omega watch and before i serviced it that hands would move for a bit and then stop, i would say maybe move 15 minutes before it stopped(im guessing at this as i didn't pay too much attention to this before the service). After i serviced it, i hooked it up to my watch machine and it is running accurately. However, after the service the minute hand would not move, so I tightened the cannon pinion and it moved for about 5 min before stopping. I bought a new cannon pinion and the hands dont move at all, the cannon pinion seems like it might be a little bit loose on the new one. However it is new so it shouldn't have that problem of having to tighten it correct? Also could it be that the minute hand could be a little bit loose? I bought a new pair just to test it, but if its not the hands im stumped at this point. Any suggestions would be great, maybe i need to tighten the cannon pinion more but i dont want to over tighten it.

Link to comment
Share on other sites
Vich Distinguished Member

Vich

Posted
Posted

Hello Fuse,

Is the balance and train moving when the hands / pinion are not ? Is that your reason for looking at those in particular. Which model Omega is it and is it still out of the case so you are able to see the movement in its entirety. I have made the mistake of targeting a particular area as a source of the problem only to find it was something else. You may have to go backwards through the workings to sort it.

The Omega lads will kick in shortly and I am sure that once they know the animal they are dealing with you will get some help.

Cheers,

Vic

Link to comment
Share on other sites
Vich Distinguished Member

Vich

Posted
Posted

Hello again fuse,

Hope Joel came up with the answer but just in case -

Everything below has happened to me at some time.

If the minute hand was loose it may not move but the hour hand would and vice versa. Was there any chance the hands were in contact, sometimes after a relume for instance there can be a slight thickening of the minute hand that causes them to touch if not perfectly parallel and it could be that they appear ok on other parts of the dial but only meet up once an hour.

Did you take the barrel apart and clean it, could the power reserve be affected by a slipping arbor or something else wrong within the barrel. The wrong barrel grease or mainspring oil can have an intermittent effect.

Have you looked at all the jewels for problems.

Could the problem lie with the lubrication -

It is not much fun but I have on occasion just given up and done a complete strip, clean and re- lube checking it all as I went the second time.

However, your original diagnosis may still be valid, have you been sent the correct part, I have twice been sent a wrong but very similar part by a major supplier, there was no problem about replacement in the end and they just told me to keep the wrong parts which they had accidentally and incorrectly marked in their vast stock.

Hope some of this could help, at least until someone can come up with more ideas.

Cheers,

Vic

Link to comment
Share on other sites
fuse63 Watch Enthusiast

fuse63

Posted
  • Author
Posted

So i installed a new mainspring and tightened the cannon pinion a little more and the hands move for 15 minutes and then they stop. When i pull the crown to the setting position and then push it back to winding position the hands start moving agsin. Let me note that the whole time the movement is running and never stopped. Any ideas as to what might be wrong?

Link to comment
Share on other sites
Vich Distinguished Member

Vich

Posted
Posted

Funny that this sort of resonates with what Joel was saying.  There must be a definitive link between the keyless work and the solution to resolving the problem as without that link it would not keep starting again when the crown is pushed back in. 

 

To state the obvious, some part that is engaged is disengaging either gradually or perhaps specifically at a particular point in  time but that part is affected by the keyless work in some way so that will be the area to look at.

 

I am going to try and find a pdf for the 610 to look at and I shall see if someone else can help.

 

Cheers,

 

Vic

Link to comment
Share on other sites
Vich Distinguished Member

Vich

Posted
Posted (edited)

I had to use a proper puller to remove mine from the Omega 28.10 Bumper I am currently working on as it was so tight - no way would it pull off with fingernails or tweezers etc. but I am not acquainted with the 610 so could not honestly say that it will be the same. However, if I do not sit on the fence, my feeling is that it is likely to need to be quite tight.

 

Cheers,

 

Vic

Edited by Vich
Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • HectorLooi
      Thyme tea

      By HectorLooi · Posted

      I wish to share my experience with thyme tea with everyone. Six months ago when I had my second bout of Covid, my chest was so congested that breathing deeply hurt. Coughing was pure agony. And with a 40°C fever that comes back every 6 hours when the level of paracetamol in the blood falls, I was willing to try anything.  Then I saw this video on YouTube and I decided to give it try. I drank a cup of the stuff and went back to bed. When I woke up about an hour later, I coughed up a golf ball sized lump of greenish-yellow phlegm. And almost immediately, all symptoms suddenly abated. 24hrs later, I was feeling perfectly fine. I repeated an ART test and it was negative. I started recommending it to some of my friends and many of them found it useful, although some claimed it had no effect. I had another round of Covid last week. I tested positive on Thursday and although the symptoms were very mild, I drank a cup of thyme tea just to play safe. And by Friday evening all symptoms were gone. I repeated an ART test and it was negative. If any of you read this, try it out the next time you get Covid or the flu. Let me know your experience with thyme tea. @watchweasol, you might like to take note of this.
    • nevenbekriev
      First movement = First broken movement

      By nevenbekriev · Posted

      The problem is where the arrow shows.
    • ManSkirtBrew
      Listen to that little voice in your head

      By ManSkirtBrew · Posted

      Why is it when that little voice says, "This is a bad idea," we always want to talk ourselves out of it? I had the low blood sugar jitters earlier, but insisted to myself that I'd be able to oil an especially tiny cap jewel on my friend's Omega 1001. With lots of concentration, I nailed it. But when I put the hole jewel on top, it was too much oil and it squoze out everywhere. It didn't spread on the cap jewel much thanks to the epliame I'd applied, so it was more than it looked like from the top. Back in the cleaner, dried, re-epilamed, dried. Time for a second try, but now I was more shaky even than the first time. "This is a bad idea," my brain told me. "Take a hike, brain," I said as I watched the oiler jiggle into my microscope's frame. And just like that, the jewel was a tiddlywink and flew out of sight in the blink of an eye. With a strong UV flashlight and the waste of a lot of time I did find it on my desk, but that's some stress I didn't need in my day. So friends, listen to your body, and listen to your brain when it tells you now's not the time for precision work.
    • Neverenoughwatches
      First movement = First broken movement

      By Neverenoughwatches · Posted

      I dont think Hector means there is an issue with the hairspring at the collet, only that the collet is not centered over the jewel hole. You can check this by unmounting the hairspring from the balance and recentering the collet with the balance jewel. If the coils remain undisturbed then i believe it unnecessary to dismount the collet and only adjustment at the stud is needed to bring the hairspring to shape. If any of coils have been accidentally bent then reshaping of hairspring separately would be required.
    • Terrinecold
      First movement = First broken movement

      By Terrinecold · Posted

      @HectorLooi Thanks.  I do have a microscope. But no camera to show what I see in it.  You are correct that some coils overlap. In particular the outside one where thr regulator pins go  overlaps the previous one. I will try your suggestion.  I am surprised that there is an issue with the collet as I don’t see how I would have messed that up.  I didn’t think the impulse jewel is damaged as I can check it in the microscope. I meant that when I put the balance I am always wondering if I managed to set it correctly in relation to the fork.  Thank you all. So I think I will take @HectorLooi advice and note that the hairspring needs fixing and go practice with my second ST36. In any case this one also has the setting lever screw broken in the setting lever.  I think I’ll also order a dial, case, hands and strap to make a watch out of that second movement.  I see a bunch of them on AliExpress or eBay.  Anybody has recommendations?  
×
×
  • Create New...