Jump to content

More Rust!! This Time, An Omega Chronostop Cal.865

Mark
 Share

Recommended Posts

Mark Distinguished Member

Mark

Posted
Posted

Its not been a good month for rusty watches. It's a real shame about this one as the dial has also been damaged and it will be pretty hard/expensive to replace as it is the driver model (dial is rotated 90ºs).

 

 

Here are some pictures of the strip down.

 

post-1-0-05341200-1435240783_thumb.jpg

 

post-1-0-49702700-1435240783_thumb.jpg

 

post-1-0-03051100-1435240784_thumb.jpg

 

post-1-0-56944100-1435240784_thumb.jpg

 

post-1-0-01495700-1435240785_thumb.jpg

 

post-1-0-57136900-1435240785_thumb.jpg

 

post-1-0-03582200-1435240786_thumb.jpg

 

post-1-0-54493600-1435240786_thumb.jpg

 

post-1-0-11196400-1435240787_thumb.jpg

 

post-1-0-57307200-1435240787_thumb.jpg

 

 

  • Like 1
Link to comment
Share on other sites
Mark Distinguished Member

Mark

Posted
  • Author
Posted

post-1-0-54850300-1435240905_thumb.jpg

 

post-1-0-80868900-1435240906_thumb.jpg

 

Notice that somebody broke a screw on this one and replaced it with a bodge up...

 

post-1-0-06622300-1435240908_thumb.jpg

 

It seems the screw hole (a steel insert) has been removed and the screw was driven into the brass plate - oh joy. Not sure if I will ever find a new steel insert. May have to make do as best as I can.

 

post-1-0-12436200-1435240909_thumb.jpg

 

post-1-0-51054500-1435240910_thumb.jpg

 

post-1-0-80876300-1435240911_thumb.jpg

 

post-1-0-05805200-1435240913_thumb.jpg

 

Broken mainspring. Notice how it is coned up due to being fitted badly by hand...

 

post-1-0-94788300-1435240913_thumb.jpg

 

post-1-0-84529800-1435240914_thumb.jpg

  • Like 3
Link to comment
Share on other sites
Mark Distinguished Member

Mark

Posted
  • Author
Posted

This is the driver edition.

f4e146a8d44fdf7f442e69635939cd50.jpg

The cost of parts is pushing this repair to the limits already though even if I could find one.

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
oldhippy Distinguished Member

oldhippy

Posted
Posted

You've got your work cut out there Mark. I used to get many rusty watches come to me more so in the summer as I was close to a seaside town. It's unbelievable the damage sea water can do in such a short time. 

Link to comment
Share on other sites
oldhippy Distinguished Member

oldhippy

Posted
Posted

Hi clockboy. I think we all had or have a good old glass fibre scratch brush. The problem using one of those on an Omega movement is being so careful as not to remove the bronze finish on the movement and to make sure each brush goes the same way as the finish, if not you can be left with a movement that looks terrible and you have caused permanent damage. I always went the way that parts were better to be re-placed, I would never use the old stem if it had rust I would always fit a new one.  

Link to comment
Share on other sites
Mark Distinguished Member

Mark

Posted
  • Author
Posted

@oldhippy - spot on. Using the scratch brush on omega plates will damage the finish. A good soak and plenty of work over with peg wood is usually very effective.

The scratch brush is good on steel parts.

If the rust has penetrated a part then it should be replaced if available and customer agrees to the costs.

Sent from my iPhone using Tapatalk

Link to comment
Share on other sites
  • 4 months later...
  • 1 month later...
ramrod Super WRT Addict

ramrod

Posted
Posted

o.k....time's up, mark. we gotta have an update on this. i'm interested on what the outcome was (i'm sure it was based on customer cashflow).

 

i read somewhere that the 865 is similar to the 861 (i believe). memory fails me as to what i read about the 861 but it seems that it was a better movement in some way. refresh me fellas. or am i losing my marbles on this one?

Link to comment
Share on other sites
  • 1 month later...
  • 1 month later...
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • RichardHarris123
      Landeron 248 setting eccentric studs

      By RichardHarris123 · Posted

      It opened today, excellent as usual. 
    • nevenbekriev
      Pocket watch escape wh

      By nevenbekriev · Posted

      I will advice to share the idea first here before doeing something to the movement
    • Jon
      Omega cal. 565 - low amplitude

      By Jon · Posted

      When you move the index which changes the timing from an extreme fast to an extreme slow, is there a big change in beat error? Obviously there will be a big change in timing. If there is a big difference in BE then this is strongly inferring the the end-curve of the hairspring isn't set correctly or/and the collet is central to the jewel on the balance cock, because the hairspring that is breathing between the curb pin and boot is being pushed and/or pulled when you move the index from left to right. Also not having the hairspring set correctly can dramatically reduce the amplitude. A quick check is to take power off the movement and move the index from extreme fast to slow and with high magnification see if the hairspring sits nicely between the curb pin and boot at all times (give the balance a spin and watch the hairspring - has it got total freedom?) or if it moves by being pushed or pulled by the curb pin or boot. I'm guessing it is the latter. I think that may be a possibility to your problem.
    • RichardHarris123
      Unbranded skeleton movement

      By RichardHarris123 · Posted

      I can't get windingstens.com to open but you need a  few measurements. 
    • Waggy
      Movement holder made with 3D printer

      By Waggy · Posted

      All Done, Here are the finished pictures: This one shows the generic "one-size-fits-all" base which accepts the bespoke rings - notice that the parametric movement OD (27.40 mm) automatically prints on the ring 🙂 From another angle: Here is the ring about to go into the base: And finally the base and ring together: Here it is next to a pen for scale: On my system with 20% fill each ring will take about 18 mins to print, but I am sure this could be optimised: Here is the screenshot of the spreadsheet in FreeCAD, you just need to change one value to create the ring in cell C3, (the base doesn't need any changes). I just uploaded the files to printables link here, but also include  here as a fake pdf, please change the .pdf to .zip to make the file work once downloaded: Modular Movement Holder.pdf Any feedback welcome!     I'm also going to make a parametric ring insert for rectangular/oval movements - but I just finished a parent teacher evening so too tired now 🙂  
×
×
  • Create New...