Jump to content
  • 0
RyMoeller

Omega 1045 / Lemania 5100 Part

Question

I recently acquired an Omega Speedmaster automatic from the 1970's that has the Omega 1045 / Lemania 5100 movement inside.  Long story short- the previous owner tried to service it and made a mess instead.  I've managed to source all the parts I think I need except one for the automatic works- the Stop Spring (part no. 1414).  This looks like a part I may be able to fabricate but if the original is available I would prefer that.  Unfortunately I've come up empty with my usual suppliers.   Cousins is the one one who may have it, but it's Restricted which I suppose means you need to be an Omega authorized technician (which I naturally am not) to purchase.

249946333_ScreenShot2019-01-11at8_55_14PM.thumb.png.feb369084ff51100686d48fc88915b64.png

 

If anyone has a lead to follow I would be most grateful for your assistance.  This piece is a proper mess right now but I think I'm close to bringing it back from the dead.

IMG_5476.thumb.JPG.766c29ec33ce3b6040ba019090fbb784.JPG

Share this post


Link to post
Share on other sites

9 answers to this question

Recommended Posts

  • 0
58 minutes ago, RyMoeller said:

Thanks Stuart- I can't imagine why I didn't think to check Watchguy's listing.  I've sent an inquiry to him today.

You’re most welcome! I enjoy the challenge. There’s one here too

http://www.oltenwatch.com/product.php?productid=18862

One day I will write a list of how to find watch parts!!

Share this post


Link to post
Share on other sites
  • 0

Okay cannot help you .... But just wanted to wish you luck and success for your project. I hope one day I can get my hands on one of those to work on myself. If you get it done I would like to see the results.

Share this post


Link to post
Share on other sites
  • 0

Hello @RyMoeller,

I looked up the part using Bestfit MATSYS and, if you come across any of them, these are the only cross references I found that use that spring: Rodania (Lemania 5012) and Tissot 2910.  I just checked Borel, but A/8767 is out of stock.

667658083_ScreenShot2019-01-12at8_48_38AM.thumb.png.ed3a9cc22bd4a06ef60a366ec1bf58ef.png

J

Edited by noirrac1j
updated info

Share this post


Link to post
Share on other sites
  • 0
3 hours ago, noirrac1j said:

Hello @RyMoeller,

I looked up the part using Bestfit MATSYS and, if you come across any of them, these are the only cross references I found that use that spring: Rodania (Lemania 5012) and Tissot 2910.  I just checked Borel, but A/8767 is out of stock.

667658083_ScreenShot2019-01-12at8_48_38AM.thumb.png.ed3a9cc22bd4a06ef60a366ec1bf58ef.png

J

Thanks J- that's very helpful.  As @rogart63 pointed out- I just discovered that ETA is producing a movement that's based on the 5100 again so I'll try that avenue as well.

Share this post


Link to post
Share on other sites
  • 0

I must say, it's a simple spring and a very "common" shape. You can easily fit a similar spring from many other scrap movements (or springs assortment) to that recess in the plate.

Share this post


Link to post
Share on other sites
  • 0
I must say, it's a simple spring and a very "common" shape. You can easily fit a similar spring from many other scrap movements (or springs assortment) to that recess in the plate.
Yes and no, it has a sort of raised portion at the business end, that sort of does the business . It's also surprisingly light in force for its size.

Share this post


Link to post
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.

Guest
Answer this question...

×   Pasted as rich text.   Paste as plain text instead

  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.

Loading...

  • Similar Content

    • By jackie01
      Hello,
      I started new project - Citizen 67-9119. It's seventies chronograph based on 8110A movement. Watch came to me as "fully working in great condition" As you can see there isn't crystal. The one which was here had chip and wasn't set properly in bezel so when i turned the watch it fall on the floor and broke. As you can see dial is in quite good condition, only it needs to be relumed. Hands needs to be repainted and relumed too. Movement works well but it is too speedy (  +3 min/24h). Chrono buttons work properly, only the hour counter stops at "3h" position so I must to take a look here. I striped down the watch and disassembled movement. There was some much oil everywhere so the cleaning is required. 















       
       
       
    • By jackie01
      Hello everybody,

      I open this thread to archive works on Citizen 8110A Bullhead. I purchased this watch in poor condition as You can see on the photos.


      Cause I have serviced few chronographs in the past I decide to try restore this watch. Maybe is not ractional from the economical aspect but we do this because we love it So let's open it.

      Hands are in good condition (required repaint and relume) but the dial has broken legs and tachy scale is faded :/ I think it's really hard to find orginal and there is no gold aftermarket replacement - sad. Look at the movement.







       
      Gosh, what a dirty place It needs good cleaning and oiling. 
      But the biggest problems are this.


       
      Broken post on main spring bridge and missing rocking bar core and screw in gear train. I need to find replacement.

      While I'll be working on movement the case and pushers are send to renew - putting new gold plated coat

       

      Stay tuned
       
       
    • By east3rn
      Hello. 
      I am about to work on a Omega ladies automatic watch.
      I found out that the axis of the rotor is out of place and shakes up and down.
      What could be done in this situation?
      Thanks!

    • By adsterb
      Hey everyone, I cant find out how to get this drown off and I've tried everything. The Miyota JS25 movement says PUSH and points to a hole which I've learned means this is where you press to reease the crown but I still can't get the crown out no matter which position the crown is in. I first tried with the crown all the way out then with it halfway in, then all the way in and haven't been able to get it out, please help.


    • By RyMoeller
      I wish I had more projects to report on but things have really bogged down lately as I continue to bite of more than I can chew.  I'm in the middle of three long term projects (the Favre Leuba Bivouac going on year three) and am running short of workbench space.  I'm in the middle of changing out the engine in my wife's Mini Cooper too (that's another story but if you own a Mini- be sure and replace the timing chain guides!) and that has really eaten into my "fun time".
      I thought I'd bring this one to the board for comments before I'm underwater- it's an old Gallet from the 60's.  Do you think it can be salvaged?

      We clearly have some water damaged however, the seconds hand will move if the crown is given a little pressure. 

      Water entered in through the chronograph buttons and the pendant tube.  I haven't tried depressing the buttons- I think that would just lead to bits snapping and rust moving about.
      I'll need a new stem for sure...

      The dial actually looks quite good.


      I wonder what it looks like underneath though...

      It's not terrible, but it's not great either.  Most of the rust damage is concentrated in the keyless works.

      There's a bit of damage to the hour recording mechanism...

      That's as far as I've gotten thus far.  The screw for the Operating Lever is rusted tight and is now being treated with a bit of penetrating oil.  Once removed I can pull the second pusher button out and remove the movement from the case.  I'll know the full extent of the damage once it's in a pile of bits and pieces.
      This is an Excelsior Park EP40-68 movement.  I've wanted to work on one of these for quite a while but couldn't afford a proper working piece. Excelsior Park parts are difficult to source though so I may not be able to bring this one back to life.
  • Recently Browsing

    No registered users viewing this page.

  • Topics

  • Posts

×
×
  • Create New...