Vintage Triple Date Moonphase Buying Advice: Omega Cosmic

cc818 · Jun 4, 2026

hi! I’m new here. I collect vintage jewelry and have recently gotten into watches. I recently went through cancer and am now in remission, so I want to find a dream watch or two. The intent is for these to both be collectors’ items that I can pass down to my kid but also ones that I feel comfortable wearing on the regular and that are fully functional. Bonus points if the day/month are in French.

One thing I’m after is a midcentury triple date moonphase. My budget is up to $5k and it seems like for an Omega Cosmic triple date moonphase in good, collectible condition that this might be ambitious. Would that be accurate, or is there hope? I’ve also got my eye on the JLCs but same deal. I’d maybe go for a Zodiac as a backup as it seems like I could definitely score one of those for $5k or under.

If anyone has suggestions, especially of reputable dealers or sellers, I would greatly appreciate it. I’m located in SoCal but I visit the Bay Area, NYC, and Boston and could check out any local dealers in those areas.

Thank you 😀

dsio · Jun 4, 2026

It’s not an easy watch to find a good example of, the additional holes in the case necessary for the correctors make the case about as water resistant as a paper plane, which means the majority of the dials are refinished.

Then the movements often need parts too.

Something worth adding to your consideration is Omega made a re-edition with modern water resistance and a Blancpain derived automatic triple date Moonphase movement in a relatively slim package.

Price wise these are a bit north of $5K but worth it given how superb they are with an authentic vintage design.

https://stories.omegaforums.net/the-best-triple-date-moonphase-omega/

theluckyluke · Jun 5, 2026

Great choice for the look, but maybe not so much for “I feel comfortable wearing on a regular basis”.

I have one and love it. It took me a couple of years to find with the right balance condition and price and fully original. I don’t wear it often, as you have to be extremely careful, even when washing your hands. It’s probably not the best choice for a daily wearer.

You want to take your time with these. There are not inexpensive and the dial originality and condition is a great part of the value, alongside a working mouvement. The majority are refinished, often poorly but sometimes quite well, so caution and research is best before a purchase.

There is currently one for sale with an attractive patinated dial in my opinion, in the private sale section, from a reputable seller.

https://omegaforums.net/threads/omega-cosmic-triple-date-moonphase-ref-2471-steel.191952/

Thread 'Omega Cosmic Triple Date Moonphase - Ref. 2471 - Steel' ·

Today I’m selling this beautiful Omega Cosmic triple date moon phase ref CK2471 from the 1940's. These are some of my favourite Omegas to collect as they have so many interesting dial...

SOLD

€ 4500

cristos71 · May 28, 2026

And a picture of mine to finish:

Fulton8or · Jun 5, 2026

C cc818
hi! I’m new here. I collect vintage jewelry and have recently gotten into watches. I recently went through cancer and am now in remission, so I want to find a dream watch or two. The intent is for these to both be collectors’ items that I can pass down to my kid but also ones that I feel comfortable wearing on the regular and that are fully functional. Bonus points if the day/month are in French.

One thing I’m after is a midcentury triple date moonphase. My budget is up to $5k and it seems like for an Omega Cosmic triple date moonphase in good, collectible condition that this might be ambitious. Would that be accurate, or is there hope? I’ve also got my eye on the JLCs but same deal. I’d maybe go for a Zodiac as a backup as it seems like I could definitely score one of those for $5k or under.

If anyone has suggestions, especially of reputable dealers or sellers, I would greatly appreciate it. I’m located in SoCal but I visit the Bay Area, NYC, and Boston and could check out any local dealers in those areas.

Thank you 😀

This was free, pulled it out of my local jeweler’s junk bin. Yep, it’s Quartz, but it’s triple-date moonphase with a 24-hour/2nd time zone. Lovely dial & hands, I like it so much I put an orange ostrich strap on it.

njlam · Jun 5, 2026

I have found the Zenith El Primero Chronomaster Triple Calendar with Moonphase to check almost all your boxes. Mine is a pre-LVMH acquisition model that can generally be found in the $3K-$6K range.

Here is some history of this watch and the Zenith El Primero movement in general.

https://monochrome-watches.com/in-d...primero-high-frequency-automatic-chronograph/

TimeODanaos · Jun 5, 2026

C cc818
One thing I’m after is a midcentury triple date moonphase

Research Movado - Calendograf etc. You might be agreeably surprised.

Vintage Triple Date Moonphase Buying Advice: Omega Cosmic

cc818

dsio

theluckyluke

Fulton8or

njlam

TimeODanaos

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