Jump to content

Rolex 1570 calendar stud issue (from a 1600)


Recommended Posts

Hey, servicing a 1570, all went smooth (except it needs a new balance) when I run into this. It looks like someone used jb weld or something to secure the nut. I thought I was going crazy. I cleaned out the nut and post and I cannot get it to thread (reverse thread that is.)

 

I can’t tell if it’s the nut or the stud that it the problem but am leaning towards the stud.

 

I’ve tried to repair these types of things in the past with limited success, once I bent a bridge trying to press a post out.

 

so I ask you? Try to press it out and make a new shaft? Cut the stud and make a simple collar/snapring as it’s not really a “weight bearing part”, or use jb weld again (it seems to have worked fine for over a decade.) 


 

thanks

 

dan

1FAB9C0D-8E0B-40E9-A782-DDE585FC72DB.jpeg

647058D6-33E8-4B9E-BA77-98162C1475EE.jpeg

6456E931-4021-41A3-8250-FC634477E043.jpeg

0FAAF5D5-7FC2-4562-8544-E6041012C0F4.jpeg

619791E4-43E9-4F2A-807B-D6BA30AB61A2.jpeg

Link to comment
Share on other sites

4 hours ago, Kalanag said:

It‘s about this nut and its threaded post:

 

BBC8BCB9-DD7E-44A7-8B3B-C911BEB8FA32.jpeg

Yeah. This is the screw. It is reverse threaded (that’s what the three lines indicate). I think what happened was that at some point someone else attempted to work on the watch and stripped out the stud. When I took it apart it was very stuck together and it had this thick grey gunk on it. I assume it was loctite or jb weld or something.

 

Link to comment
Share on other sites

18 minutes ago, clockboy said:

Mild heat normally works with loctite. Finding replacer screw might be a challenge..

Yeah, I got it off and all cleaned up. But in the picks you can see the stud doesn’t look normal. I can press the stud out and machine a new one, but there is some risk to the plate. Any stainless steel plate of the same diameter should do fine. Tapping the end is challenging but doable.

the thing is, a spring clip would probably work just as well. All the nut does is hold the gear flat, there isn’t much torque on the gear.

or, some more jb weld. It worked for a decade…

 

 

Link to comment
Share on other sites

Just to follow up. This was actually a lot easier than I had assumed. The part is available as a generic from a lot of vendors. I just used a staking tool and pressed the old one out. No problems at all. Here you can see the threads have been destroyed.

now, to find a balance for less than a grand…
 

thanks
 

 

1120319F-1A59-4789-B87B-CB69EA4B0394.jpeg

D6B4BBF3-B46C-4EDB-95E5-8B8725259862.jpeg

A28725A1-0E8B-4495-BCEB-F159F2B15F99.jpeg

  • Like 1
Link to comment
Share on other sites

  • 2 weeks later...

The hairspring was bent and had been repaired before but it didnt keep good time. I made a half hearted attempt to bend it back but it was kinked. I sourced another balance and replaced it with no issues. They are stupid expensive thought. 

Otherwise, it was a very straightforward service.  

Link to comment
Share on other sites

  • 10 months later...

I'm glad it turned alright! Thank you for sharing.

In the absence of having the specific wrench for that calendar nut, any suggestions for what to use or improvise with? I've been searching for the specific tool without any luck.

 

Thank you!

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.



  • Recently Browsing

    • No registered users viewing this page.
  • Topics

  • Posts

    • Never and others. Yes like you I do spend a fair amount of time reading the contents of this forum. I find it better that any other. clear, lucid, no Prima Donas, and most of all an easy access without adverts. All thanks to Mark. God bless you mate. You give so much to many of us. What if? No Mark? Hypothetically. A forum. I did run a forum for a few years. Really enjoyed it, but became so engrossed that it did affect my health. I gave to to others to run. Not been back. It was very successful and rivalled a number of large paying sites. No adverts, no others but me. I did ask and listen to members comments and it worked well.    Costs Having a domain name, £10 annually.  Register the site with a forum company, free. Build the site using the forum company guide lines, free. It looked and ran almost the same a Mark's. All the same facilities. The cost was only £5 per month, but counted visits (views). If I recall, it was that price for 5,000 views. Each extra 5,000 views increased the price by £2 per month. Success was my own personal undoing. From £5 per month initially, it rose to £60 a month and looked like increasing. This was 10 years ago. I could not afford that, and asked it anyone would like to take over and someone did. I would assume that this is the price that Mark is funding for us all. His return is our continued comments on the internet about his course, and the fact that many of the big names on YouTube mention him as their Tutor. Those of us who have done, and are still using, his course, benefit. In comparison to other courses, I can't believe how cheap it is, and the value is exceptional. It is the structure that gives the value. Long may Mark reign. Ross  
    • Get someone local to tig it ,very easy fix and should only take a few minutes so probably wouldn’t cost much ,or failing that get it very clean and silver solder it. Dell
    • Hi, The winding pin is not split, well that's how it was when I obtained the watch. The movement is front-loaded and here's a picture of where the case screws are fitted. The face picture is before I dismantled it.
    • I dont think mine is. Its an idea to have them all in one place if possible, then a quick screenshot will have them saved. Unless anyone has any other ideas of how to reconnect 
    • My email address is in my profile, feel free all to drop me a quick hello. 
×
×
  • Create New...