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Omega Seamaster 2846

Matt665556
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Matt665556 New Member

Matt665556

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Hi guys, I recently purchased a 1958 Seamaster with a cal.510 movement. Everything is great apart from the crown is unoriginal. I found this NOS part on eBay and would like to double check it will fit (https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.com%2Fulk%2Fitm%2F372235794951). 

 

I will post a picture of my watch for reference.

 

Many thanks, Matthew

 

IMG_20180319_190723_684.JPG

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Matt665556 New Member

Matt665556

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12 minutes ago, rodabod said:

Have you measured the thickness of the existing stem?

No, but I have looked the reference number up on ofrei and they seem to think it will fit the cal.501. Also when researching the watch I saw that most of them have a clover style crown.

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    • Neverenoughwatches
      AS 554 from 1930

      By Neverenoughwatches · Posted

      Nice interesting diver Razz, i have a sheffield dress watch, different movement altogether. Could be a wrong motion works part, how does the setting feel before fitting the cannon pinion, clutch and intermediate wheel meshing ok ?  The less traditional setting design could be suspect, the second wheel has a slip clutch assembly, that most likely needs looking at. LA is 42 ° Razz Tbh i  much prefer to call the complete unit the lever, then use the seperate names for all of its components. Such as guard pin, fork, fork horns, fork slot, lever arm, pallets , pallet arms, pallet slot, pallet stones. I suppose pallet fork is the combination of the two opposite ends that make up the lever, its also called the anchor which is descriptive of its appearance.  Its a pretty basic 1930s  swiss lever movement H and yes Nev was meaning the pallet fork.
    • RichardHarris123
      AS 554 from 1930

      By RichardHarris123 · Posted

      The pallet fork should really be called a lever, English lever, Swiss lever etc but most people including myself call it a pallet fork.
    • RichardHarris123
      Seiko 6309a diver crown replacement

      By RichardHarris123 · Posted

      Seiko have case numbers, I  can't see it on your photos.  If you can find that we can look for a genuine crown.  If not, you need to measure the diameter of the stem, the distance between the lugs and the depth of the lugs.  The case number will be something like this. 
    • VWatchie
      AS 554 from 1930

      By VWatchie · Posted

      I'm not sure what kind of movement this is, but I'm curious to know if you're using the word "lever" as a synonym for "pallet fork"?
    • Razz
      AS 554 from 1930

      By Razz · Posted

      Actually kind of rough, maybe munute wheel pinion problems? Is the 2.73mm canion oinion which seems rarer and not availble on Cousins UK. The seconds hand works and suprising nice amplitude but don't know the lift angle and BE this one says 17 j but is a pin pallet as well. Cap jewels on the escape and drive train pivots. Interestingly in has both water proof and shock resistant on the caseback and dial. Puts this around 1969 or '70? The double bezel that works independently is cool has the pi symbol on each. Wonder if it can be used like a slide rule ir something...
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