My new omega ref. 2887 and my research about this refence.

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Hello all members.

I think that omega ref. 2887 was one of the uncommon references in the omega constellation model.
Furthermore, if this reference combines with the most desirable dial patterns in my opinion (pie pan with arrowhead markers) then I find it hard to get this one.

I searched in these forums and I found very nice examples (owners and calibers) as I show:


I wonder why I can’t find a black dial in this reference.
I found only these two, however, both of them were redial. The one on chrono24.com is currently sell (2500US).


Finally, I can get this one which I believe original black pie pan dial with some patina.
- This decagonal crown was original too (not easy to find an original replacement crown).
- Case was a gold cap with some polished but acceptable condition.
- Serial number was 15,009,xxx with caliber 501, 19 jewels (correct for 2887-1)
- Reference 2887-1
- Medallion on the case back was original.


According to my research about omega 2887 from this forum and google, I can find only 2887-1 and 2887-2.
If I include only an arrowhead marker from original dial (not repaint), I found that cal.501 with 19 jewels was more uncommon and found only earlier serial numbers around 14,97x,xxx to 15,115,xxx. Then it was changed to cal.505 with 24 jewels around serial number 15,119,xxx.

So can I assume that if you find omega ref.2887 with cal.501 (19 jewels) it should be only ref. 2887-1
and if you find any 2887-2 it should be only cal.505 (24 jewels)?



One concern is that someone can swap the dial between ref.2887 and 2852 except 2887’s font that @hoipolloi called funny font which is unique to ref.2887.
So, how can we prove that is the dial original for this ref.2887?
Any idea how to prove it? I believe that even “extract from the achieves” cannot guarantee?


You’re welcome to share your opinion about my watch and my hypothesis.
Special thanks to @cristos71 @hoipolloi @Dr No @Peemacgee @seekingseaquest and others that I always discuss via PM.
Teerapat
 
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May I clarify this symbol ** means pie pan dial, while others mean dome dial in the last 2 pics.
 
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I do not intend to dissuade you from your search but be aware that there is a similar Seamaster that might be somewhat less expensive. I share a pic of mine.

 
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I don't specifically know about this reference, but typically the low-jeweled movements were for US import, so I'm not sure that there was really a transition from 19j to 24j at a particular serial number. That may just be an artifact of the particular sample you have identified.
 
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I don't specifically know about this reference, but typically the low-jeweled movements were for US import, so I'm not sure that there was really a transition from 19j to 24j at a particular serial number. That may just be an artifact of the particular sample you have identified.

My understanding is that the cal 501was initially only available in a 19 jewel version, as @qazwsx1 notes, as opposed to being produced to avoid tax duties ( like some other Cals)


link and Excerpt from Desmond’s site.
http://users.tpg.com.au/mondodec/movement2.pdf