Jump to content

Stubborn Screw-In Back How To....maybe


Recommended Posts

Here's one I prepared earlier..

 

After cleaning both the nut, and case back with acetone, I added superglue, and placed the nut on the case back with a weight for 24 hours.

 

16041669830_e306015ac9.jpgUntitled by Micky.!, on Flickr

 

Next day, left with this..

 

16042930479_8efbf7651b.jpgUntitled by Micky.!, on Flickr

 

Then unscrewed as per video, you can hear the dirt/grit in the case back threads as I unscrew it, clearly needs cleaning.

 

 

 

One that is done, soak the case back and nut in acetone for another 24 hours. Not worried about dissolving the nut nylon lock washer.

 

16203169336_cbcd1b3371.jpgUntitled by Micky.!, on Flickr

Link to comment
Share on other sites

  • 11 months later...

Thanks ro63rto, I'll save that option for last! :) This epoxy resist cold up to -40 celcius...My fridge my not make a dent on it.

 

i deliver to duke hospital and their research facilities. one of their "refrigerators" is cooled to -80 C....i'd look like a nut if i asked to put my watch case in there. lol

Link to comment
Share on other sites

 

i'd look like a nut if i asked to put my watch case in there. lol

errr....which nut goes into the fridge? :D

 

Sorry ramrod, I couldn't resist! You are not alone, I would have liked you to see my family's faces when they first saw what I was doing with the watch when I first started doing this! :)

 

Cheers,

 

Bob

Link to comment
Share on other sites

It is supposed to work on bezels but I have mixed feelings about this one...it is a cheapo from ebay...not too cheap though! I used it to hold the base and knock the nut off with the hammer. Remember I used epoxy which is more resistant to acetone than super glue. I would go with the superglue any time after this experience!

Link to comment
Share on other sites



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Sometimes a sticky hairspring might unravel after using a demagnetizer. But if you push the coils until they touch, they will stick together again. I find that brushing the coils gently while submerged in naptha the most effective way to cure a sticky hairspring. Sometimes it requires 2 or 3 washes to cure it. I often wondered what causes a hairspring to become sticky. The 9010 in the jewels are unlikely to drip onto the hairspring. The other possibility is the 9415 on the pallets. But then that's on the other side, below the balance. Can it "splash" onto the hairspring?  Looking at the stickiness and tenacity, I'm leaning towards 9415.
    • I was about to ask the same question, it sounds a lot like magnetism which is a quick fix (assuming you have access to the correct tool) and ideally something you should do anyway.
    • Nice! I have lately been buying up a handful of Arnex pieces on eBay because it is often obvious even without photos that they house a fine Unitas 6498. And many of the 1970s cases and "old timey themed" dials are irredeemably ugly so they are a cheap way to pickup great movements to power custom wristwatch projects. All of the ones I've bought were in like new condition, barely used assuming they were bought as graduation or retirement gifts in the 70s or 80s.
    • Walked by my local jeweler today and asked if I could dig around in his old watch case, and picked this guy up (along with a cool vintage compass and a Seiko kinetic5M62). My girlfriend's son asked if he could borrow one of my pocket watches for prom, so I thought if I can get this guy running it'd be a nice prom gift. Non-running. Felt like the balance was overbanked, but it turns out the train was jammed solid. Looks like it was just dried lubricant gluing the 3rd wheel in place, because it's clean as a whistle otherwise. Parts are in the ultrasonic right now.  
    • Neverenoughwatches. I did read your experience with the basket. I did try to file mine to true it up..but I couldn't find the sweet spot. I figured I would just bite the bullet and get the Elma components.   Thanks Randy
×
×
  • Create New...