Jump to content

Question on Removing Day wheel from an ETA 955.424

signcarver
 Share

Recommended Posts

signcarver WRT Addict

signcarver

Posted
Posted

I am working on a quartz watch with an ETA 955.424 movement. Even though the watch doesn't have a "Day" function, the movement has a Day wheel.

I can't figure out how to remove the Day wheel so i can gain access the the Date wheel and other components.

I can't find a service manual or video on how to do this. I did find a similar movement that shows a "C" clip holding the Day wheel but this movement has no such clip.

The Day wheel looks like it should lift off but when i try, it is resisting and i don't want to force it. The wheel spins freely so maybe it is simply press fit over the "canon pinion"? Note that the Day wheel is part of the silver disk in the center so, if it is press fit it appears that i would have to lever under the outside of the disk which could compromise the Date wheel???

Any suggestions would be appreciated!

A7748D42-8454-4396-9744-480E46157AD8.jpeg

Link to comment
Share on other sites
signcarver WRT Addict

signcarver

Posted
  • Author
Posted (edited)

Holy dumba$$ Batman... There IS a circlip. I had another closer look from the side, and lo and behold.... It's a tiny silver clip at the base of the brass collar. I couldn't see it from above.

Boy do i feel silly. Thanks @mikepilk and @RichardHarris123

Still, i'm glad i posted and did NOT try to force the wheel. 

Another problem solved thanks to you guys and this forum!

403FDA94-3244-4CEA-B4DC-92C846AE86CA.jpeg

Edited by signcarver
typos
  • Like 3
Link to comment
Share on other sites
  • 3 weeks later...

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.

×
 Share
Go to topic listing


  • Similar Content

  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • nevenbekriev
      First Project Already A Bit "Sideways"

      By nevenbekriev · Posted

      Yes, the screw seems to be forced in the smaller hole. In such case the screws will not unscrew when drilled with reverse drill bit. You option is to dissolve it. And yes, it is possible to drill a hole in it, then to press tappered broach in and try to unscrew, but it is much harder way.
    • Neverenoughwatches
      WWW Eterna sucked me in.

      By Neverenoughwatches · Posted

      You have plenty there to keep yourself busy 
    • DDean
      First Project Already A Bit "Sideways"

      By DDean · Posted

      So that is what the last person to work on this movement appears to have done.  There was a "wad" of adhesive material in the vicinity of that hole when I took the dial off.  I was hoping to take the high road and fix the issue in the work I did on this movement. I wasn't sure if I was imagining things or not when I looked at the screw hole, but it does appear to be somewhat distended.  I had not considered the posibility that someone had forced a screw that too big in there.  I had wondered about using a technique I've applied in other applications (where the screws are in the same scale as human hands) that involves counter drilling the plug with a  reverse threaded tap.  When I've had to do that in the past, the screw has generally caught and backed out from the torque on the tap (instead of yielding and letting the tap bore into it.)  I don't like doing that, but it's saved my rear a couple of times, but the smallest bolt I've tried that on had a 5 mm head.  This is an entirely different ball of wax. I am still contemplating disolving the screw with alum, even if that means I have to stick the dial down with double sided tape until I gain the skills to actually replace the screw.
    • caseback
      Balance staff sourcing?

      By caseback · Posted

      Hi Thomas, you should be able to find the right (or on close to beeing) in a Ronda or DCN balance staff catalogue. Cousins uk have those available as a download.
    • caseback
      Introduction

      By caseback · Posted

      Hello everyone. My name is Cees (pronounced "case"). I have been working on watches for a few years now. Got down the rabbit hole when I started watching "how to" videos on watch repair when my watch broke while on holiday. I'm not interested in collecting watches, but purely in the technical side. I love fixing them and also love collecting the tools I need (or might possibly need one day...).
×
×
  • Create New...