My first watch "Omega Seamaster 600" Condition/Value appraisal

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Hello, watch masters, would love to get your help!
This is my first post as a member of a forum, glad to join.😀

I’m a total newbie to collecting/investing in watches, but I do have some basic knowledge. I’ve always found the movement of mechanical watches fascinating, which made me watch some videos here and there.

I recently won an Omega Seamaster 600 on auction, which I on a whim decided to bid on. And later realized I should have done some research before, and that’s when I found this forum.
I just fell in love with the “plain”, basic look of the watch. Just a simple, yet elegant piece of a watch.
I bought it from a respectable auction house where I live, and that makes me believe it’s not fake at least.
The issue is that I have no idea what the actual price could be, if any detail on the watch has been replaced, etc. I found some similar watches on chrono24 but they range all from 550-1600$. I paid around 550$

All info I got from the auctioneers is that; the crown is replaced with an Omega crown and that the crystal is polished.
My untrained eye tells me that the dial looks okay, and the hands should be original (Read somewhere that the second's hand, and minute hand should be the same length.) Compared to other watches it looks like the crown is of the wrong type. I think that the strap is not original, haven't seen any with a stretch metal band.
I think that the reference number is 135.011, from the comparisons I’ve made.

This is my first mechanical watch and my budget could survive it. I’ll be satisfied, no matter what, because I wanted it.
I will be buying a new strap for it, I think I’ll buy one made from leather. Any idea what to get? I'm open to all suggestions, would love for you guys to enlighten me!
Edited:
 
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Except for the crown as you noted, I'm not seeing any issues at first glance. Looks like a nice first Omega.
 
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These tend to be more in the $300-500 range on eBay as no reserve listings, I wouldn’t pay much more than that. The movements are good, Cal 600 series manual wind, so as long as you’re cool with manual wind they’re great. It will need a service which is a couple hundred or more at an independent watchmaker, these rarely have much if anything wrong with them given how simple they are.
 
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I'm not terribly familiar with the Seamaster 600 watches, but it looks to be a good choice for a daily wearer. I'm not familiar with the proper crowns, but I too am skeptical of that crown.. A minor consideration though.

The dial looks original to me and looks better than some found on a Google Images search.

https://www.google.com/search?q=ome...6v6_8AhUnkWoFHZeABYgQ_AUIBygC&biw=962&bih=415

I too like the styling of these Omegas.

I much prefer such vintage Omegas on a smart looking strap.

With a good service it will be a happy watch on your wrist.
 
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According to the “rules” you should get a black or dark brown real croc or alligator strap. There was a thread on this recently. A racing style leather would do nicely as well.
 
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These tend to be more in the $300-500 range on eBay as no reserve listings, I wouldn’t pay much more than that. The movements are good, Cal 600 series manual wind, so as long as you’re cool with manual wind they’re great. It will need a service which is a couple hundred or more at an independent watchmaker, these rarely have much if anything wrong with them given how simple they are.
Alright, I guessed so. Will get it serviced as soon as it arrives!
 
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I agree with others, it is a nice little Omega. It will wear quite nicely, unlike the big wrist anchors many folks seem to like these days. You have done some research, and clearly did better than many of us here who have made some regrettable early purchases. They call it the "newbie tax"

I do want to add a bit to what others have said. The crown is a correct Omega replacement, but is different than what was originally on the watch. You could try to track down a vintage crown if originality is important, but there is a trade-off between originality and water-resistance. This watch likely will never be truly water resistant, but a replacement crown will do better than vintage. Buy any 18mm strap you want as a replacement. I personally would put it on a plain black strap, but I am not too adventurous. You can even buy a couple and switch them around as you like. A good place to shop for straps is Holben's: https://holbensfinewatchbands.com/ I would avoid the really low cost ones, you do get what you pay for.

To find a watchmaker, I suggest that you search the forums using google like this "site: omegaforums.net watchmaker Seattle" where you would replace "Seattle", with your nearest city.
 
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It looks like a very nice example - as long as you didn’t pay too much, well done.

The crown is incorrect but it’s genuine so I wouldn’t worry too much. Everything else checks out and condition is decent.
 
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A good place to shop for straps is Holben's
Allright, I will keep the replacement crown then, I'd rather have the watch water resistant than all original. It makes me happy to hear that i didn't throw away too much money. Thanks for the recommendation for a nice place to get some straps!
 
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as long as you didn’t pay too much, well done.
Nice to hear!
Just realized, I never said what I paid for the watch in my post🤦 I paid about 550$.
 
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550$ for a nice SM600... I think you are guilty of tax evasion. Newbie tax evasion, that is.
 
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Nice to hear!
Just realized, I never said what I paid for the watch in my post🤦 I paid about 550$.

Not a bargain but certainly not overpaid. You’ve done fine. Actually very well for a first vintage Omega.