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Are different styles of 2577 cases interchangeable?

  1. MtV Nov 18, 2022

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    Hey folks,
    before I go by trial and error, maybe someone here does have the knowledge already and is kind enough to share:

    I’d like to transplant the innards (movement, dial, etc) of a 2577 Seamaster I have into another case of the same ref. Both are cal 354s.

    One case is of the earlier variant without the beveled lugs, one the later with them. For comparison:
    7C589DCF-D977-4D8B-8B22-FC2B25DF403B.jpeg

    I spotted a difference in the shape of the movement holder plate, too. One is shaped like an S, one seems to be straight(er), not sure if that’s correct though:

    A7A67B1C-9D25-4A89-9BB1-FB37577ECAB5.jpeg

    (apologies for the bad lighting but I hope the difference is clear)

    Question is: Were the cases interchangeable regardless of the shape of the lugs? I know there was a point in the serials of 2852s when they switched from one set of movement holder plates to another, so while I haven’t heard of it for the 2577s I couldn’t rule it out.

    The dial of one of them is very precious to me, which is why I wanted to check here first before I fiddle around and damage it. At the same time I didn’t want to hand my watchmaker some work of which I’m not sure it can be done.

    Any input is appreciated. :) I’ll post the result as soon as the job is done, of course. If I’m really unlucky that might be a bit, though, as one of the screws on the movement plate looks butchered. We’ll see.

    Thanks a lot!
     
  2. X350 XJR Vintage Omega Aficionado Nov 18, 2022

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    They should interchange.

    Comparing a -8, early lug to a -10, beveled lug they both use a stepped retainer. I think the one in your first photo may be bodged.

    The dial aperture is the same, 27.8mm.

    BTW, this is a in hand observation, I took a movement from a -10 and placed it in the -8. Yes, I have way too many spare parts.
     
    Edited Nov 18, 2022
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  3. SkunkPrince Nov 18, 2022

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    Iin theory, yes. I have swapped 2627 cases where one was a disaster and other was... less of a disaster? :D

    The watchmaker has the final word, but it's worth asking about.
     
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  4. watchyouwant ΩF Clairvoyant Nov 18, 2022

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    The second point of fastening into the case, is a notch in the middle case, where that little pin in the mainplate should fit in. Have a look, if both are at the same place. By memory around 1-2 o'clock in the middle case.
     
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  5. X350 XJR Vintage Omega Aficionado Nov 18, 2022

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    The pin and screwed retainer position is in the the same location across the 3xx series of movements.
     
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  6. MtV Nov 19, 2022

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    Gentleman, you are too kind. Thank you very much! :)
     
  7. MtV Nov 29, 2022

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    Thanks again gents, very happy with the result and the transplant went without a hitch:

    38D1FF93-8FFB-447A-B8E4-23AAB0628A79.jpeg
     
  8. Kraal90 Nov 29, 2022

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    Wow! So awesome to see a golf-dial.
    Haven’t seen them expect in the book “From Seamaster to Seamaster”. They must be fairly rare?
     
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  9. MtV Nov 29, 2022

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    You can find a handful of examples here if you search through the forum, but yeah, definitely a rather uncommon dial variant. My guess would be that there are fewer examples than of hobnails.
     
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  10. Kraal90 Nov 29, 2022

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    Should probably search the forum for other rare versions as well. I would agree with you there. Golf seems more rare.

    Your dial seems to have aged well. It’s not an enamel dial on these is it?
     
  11. MtV Nov 29, 2022

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    Nope - and thank you :) It does show aging, but the last time I saw an attractive, original one for sale was >2 years ago so I didn't really hesitate this time.
     
  12. Kraal90 Nov 29, 2022

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    That if anything shows how rare these are.
    Good call. Life is too short not to buy the watch once an opportunity presents itself.
     
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  13. iamvr Nov 29, 2022

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    Awesome result!!! Congrats, buddy!
     
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  14. X350 XJR Vintage Omega Aficionado Nov 29, 2022

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    So many cool elements to this dial.

    Congrats!
     
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  15. qazwsx1 Nov 30, 2022

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    janice&fred, hejsam and MtV like this.
  16. Kraal90 Nov 30, 2022

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  17. hoipolloi Vintage Omega Connoisseur Nov 30, 2022

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    I don't like these golf balls much because of the rounded Omega logo.
    They make me think about service dials manufactured in the 70's.
     
  18. MtV Nov 30, 2022

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    One of the oddities about this particular dial style, indeed. I’ll produce a post about this at some point in the not too distant future. :)
     
  19. janice&fred Nov 30, 2022

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    There's always one :D