Jump to content

Miscolored screws ?

Flubber

By Flubber
in Watch Repairs Help & Advice

 Share

Recommended Posts

Flubber Watch Enthusiast

Flubber

Posted
Posted

Hi all,

I'm cleaning an Omega 613 movement and it looks really nice. However, when I started to clean it my first cycle for bridges, plate and mainspring barrel is water and detergent after which I dry the parts with a hairdryer. It would seem I did not dry the parts properly so some parts that was still screwed on (parts of the calendar mechanism) that was really shiny and glossy (like the bumper of '50s Chevy) has got some discoloration. I suspected first it was rust but discoloration is more like black. My question is what I can do about it ? May I polish the screw heads with like Autosol or something. I want that glossy shine back ! Any suggestions ?

I apologize for the grainy picture.

 

IMG_0645.jpg

Link to comment
Share on other sites
watchweasol Distinguished Member

watchweasol

Posted
Posted

Looks like a chemical reaction of some sort,  Autosol is only a mild abrasive so best to try it on a screw head. put s smidgin on the head and polish on a piece of card (Like Army Brasses)  May need a few attempts to regain the shine. At this point you have nothing to loose and everything to gain.  Should you need to replace the screws I have attached the tech sheet for this movement with the parts list.       good luck.

376_Omega 613 NewLR.pdf

  • Thanks 1
Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • ManSkirtBrew
      1972 Bulova President "E" Sea King 11ACACB movement

      By ManSkirtBrew · Posted

      Unfortunately I'm not that lucky. I started on the train side and after I noticed the binding I pulled everything out except the driving wheel to rule everything else out. It still binds. I'm going to double check that the pinion is fully seated on the staff first, then if no joy I'll push the bridge jewel up a fraction of a mm. Fingers crossed!
    • Waggy
      Rado rotor removal

      By Waggy · Posted

      Happy to have helped, great way to start the day with a win! 🥳
    • doober
      Rado rotor removal

      By doober · Posted

      Thank you for the advise!! It worked. The setting screw was a lock/unlock to remove the rotor. 
    • GuyMontag
      1972 Bulova President "E" Sea King 11ACACB movement

      By GuyMontag · Posted

      I have that French tech sheet too, it is a little different than the English one (eg, it doesn't have the auto works diagram). BTW, it looks like you are looking up the case number in the 1979 ABC supplement. The 1974 ABC catalog does have the 3093 case. As you determined it takes the 1222-5 crystal.  When I serviced my President 'A' (which also takes that crystal), I was able to fit a 29.8 crystal from my DPA crystal assortment. Those are, in my opinion, a great deal. The assortment comes with 10 sizes each from 27.8mm to 32.4mm in 0.2 increments. I pretty much use them for any non-armored crystal that takes a high dome crystal. I think they no longer make them but Cousins has still has some in stock but when I bought them they were around $40 for the set and now they are around $100. Still, at 40 cents a crystal it's still a good deal. For the large driving wheel, I remember I once assembled the keyless/motion works first and when I placed the large driving wheel it was interfering with the setting wheel on the dial side as the teeth were not fully meshing and it wouldn't fully seat. If that isn't the issue I got nothing and am looking forward to see how you solve it 🙂
    • Waggy
      Rado rotor removal

      By Waggy · Posted

      Not sure, but just looking at it, it seems like the screw on the right may be a fake? The one on the left may not be a screw in the regular sense at all, rather a 2 position device, I think you need to point the slot towards either of the 2 dots and one will secure and one will open. Like I said this is just my best guess looking at the pictures.
×
×
  • Create New...