Jump to content

Eta 251.262

Specializedjim
 Share

Recommended Posts

Specializedjim Member

Specializedjim

Posted
Posted

Hi all

recently purchased a Longines with a Eta 251.262 non working movement. After a quick look around I have managed to get the watch itself working but only the minute recorder on the chronograph works, I get nothing from 1/10 or second recorder. I know these movements are not that expensive to replace but I just wondered if any one has an idea of what’s wrong. Is it simply they are electronic and there is nothing to be done?  Thanks as always. 

Link to comment
Share on other sites
rodabod Distinguished Member

rodabod

Posted
Posted

Ok. I’m more familiar with Seiko chronograph circuits, but is it easy to check the condition of the switch terminals? On the Seikos there is a very fine layer of what is basically PCB track which forms the switch terminal and this can deteriorate. 
 

If you have the ability to, then obviously you could measure the voltage across the coil while it is active. 

Link to comment
Share on other sites
rodabod Distinguished Member

rodabod

Posted
Posted

It depends on the multimeter. You may still be able to detect the pulse in terms of voltage. What is more difficult is measuring current draw since it is in the microAmp range, but you don’t need to be concerned too much with current drawn yet. 
 

Maybe see if you can detect a voltage across the coil of the working sub-dial. Although it would be a pain having to wait a minute for every pulse. Unless you could switch it to zero-ing mode and set it flying around. 

Link to comment
Share on other sites
 Share
Go to topic listing


  • Recently Browsing

    • No registered users viewing this page.

  • Topics

  • Posts

    • rossjackson01
      Intro

      By rossjackson01 · Posted

      Welcome my friend. 
    • rossjackson01
      Help please.

      By rossjackson01 · Posted

      Been there. Worn that Tshirt.  'ping'. Hands and knees. Nothing. Nada. 20 minutes? Ha! I found it 7 month later. How? Well, after advice from a member, I invested in a £4 UV light torch.  Hands and knees looking for a 'ping' from a Sekonda, found them both within 30 seconds. UV makes the jewel shine. easy peasy. Could have taken longer. Just lucky on the location of the search. Hope this helps.
    • Rixy
      Broken lug

      By Rixy · Posted

      Thanks Dell. I thought about silver soldering. Have never done it but would like to give it a go. Do you think to put flux on the butted joint then run the solder in or to maybe brace it with a piece of scrap spring steel?
    • rossjackson01
      Without Our Forum

      By rossjackson01 · Posted

      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  
    • TheQuietMan
      Help please.

      By TheQuietMan · Posted

      Hi all, total newbie to watchmaking and I've had a bit of a mishap. Just completing level 2 and was doing ok, but I was just on the last part of the reassembly of my ST3620 when the balance end stone shot across the room, just as I was trying to see if I had put the correct amount of oil between it and the balance end, aarrrgh! Been on my hands and knees combing the carpet for 20mins looking for it but to no avail. Does anybody know where I can get a replacement from and what to look for please?? Thanks.
×
×
  • Create New...