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Because it doesn't say Railmaster on the dial? No broad arrow hands? Less well known than a Railmaster? The market is flat/down over the last few years.
There are many reasons why one watch is valued more than another. If I were to say one vintage Omega model was under valued then I'd say the biggest undervaluation would be to the Cosmic TDMP's which can still be picked up for the less than the price of a tatty 1970s Speedmaster.
You've hit the nail in the head about what I think are two of the most undervalued vintage omega models - TA and TDMP. I will add also that these are two models that are very hard to find in tip top original condition and those examples are similarly very undervalued as well. The TA though and its low valuation has always puzzled me because it has many factors working in its favor - modern size, military, relatively scarce, antimagnetic, railmaster precursor and omega brand.
There was a period of several years where I tried to purchase every single TA and TDMP in good shape that I could locate and I still keep an eye out for these models but now only the ones in the very best condition.
Because it doesn't say Railmaster on the dial? No broad arrow hands? Less well known than a Railmaster? The market is flat/down over the last few years.
There are many reasons why one watch is valued more than another. If I were to say one vintage Omega model was under valued then I'd say the biggest undervaluation would be to the Cosmic TDMP's which can still be picked up for the less than the price of a tatty 1970s Speedmaster.
Because it doesn't say Railmaster on the dial? No broad arrow hands? Less well known than a Railmaster? The market is flat/down over the last few years.
There are many reasons why one watch is valued more than another. If I were to say one vintage Omega model was under valued then I'd say the biggest undervaluation would be to the Cosmic TDMP's which can still be picked up for the less than the price of a tatty 1970s Speedmaster
I generally think the values are in line with other issued military watches of similar rarity and quality.
tdmp
https://omegaforums.net/threads/omega-tdmp-finally.58300/
Thread 'Omega TDMP... Finally' ·Hi all,
This is my first post here after being a very long term lurker. Triple date moonphase watch of any model either vintage or modern is always been interesting for me. Few months back just...shw24 ·
Ah yes I do know those, but are they rare ?
Uncommon overall but just as hard to find in excellent condition as it is to find TAs with unblemished dials. To wit:
Which ones ?
I’ve never even heard of a tdmp so I guess that’s why it also flys under the radar
Are they undervalued? I think it is such a subjective statement with so many personal preferences in play for each individual watch that it is imponderable, and simply comes down to individual, personal buying decisions related to each individual watch, at a certain point in time.
It is a decent, middle market mvt military 3 hander. There are quite a variety of those around, personally, I prefer a JLC Mk11 as it has a better, more historically interesting (to me) movement. Within the 53's, those for the NZ or Australian airforce are probably fewer on the ground than even a nice TA, yet don't make quite the same prices, strangely, in my opinion. I have a white dialled '53 that might be an MoD redial, or might be a civilian redial, no one knows for sure but I probably prefer it to a nice TA.
I think the classic, original TA has had quite a bit of 'low level hype' on forums over the decades and somewhat of a myth has been created, and it is a very attractive watch, perhaps it's perceived 'value' lies in those factors. YMMV.