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RyMoeller

Omega 1045 / Lemania 5100 Part

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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

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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!!

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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.

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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

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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.

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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.

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