Looking to buy a Seamaster 105005 need advice

Hi all,

So I'm looking to buy an older Seamaster 105005 with the 321 movement inside it. I just think they're a better size for my wrist at only 35mm and 41mm lug to lug.

I just needed a bit of advice. I'm looking at a listing on Chrono24 right now, and I wanted to know what sort of things to look for a check to make sure it's all genuine and original.

Here's the listing.

https://www.chrono24.co.uk/omega/se...45222386.htm?searchHash=edc14bc7_6JvMD0&pos=1

Also, what's a reasonable price to pay for the watch?

Thank you.

Here's the photos.

What he said, in French, with a Google translation.


magnifique chronographe antique avec un mouvement de calibre 321, un des plus convoités, le même qui a accompagné neil armstrong pendant ses premiers pas sur la lune, mécanisme completement entretenu en 2025 toujours garanti jusqu'en 2027, fonctionne a merveille et tien l'heure comme une neuve. patine développée sur le cadran au fil des années, magnifique caractère,
bracelet en cuir de lézard de haute qualité neuf.
Vient avec plusieurs straps.
ouvert aux offres raisonnables, expédition rapide et sans tracas

Magnificent antique chronograph with a caliber 321 movement, one of the most sought-after, the same one that accompanied Neil Armstrong during his first steps on the moon. The movement was fully serviced in 2025 and is still under warranty until 2027. It runs perfectly and keeps time like new. The dial has developed a beautiful patina over the years, adding to its character.
The strap is brand new and of high quality.
Comes with several straps.
Open to reasonable offers. Fast and hassle-free shipping.

Never buy with handheld pictures from a fast-lane seller!

Luminous missing from all the indexes. Older refinish?

Dial appears to be in original condition but as was already pointed out, it has some issues. I have a 105.004 in 18k and recently purchased a 105.005 in stainless from an online auction in Switzerland, for approx 3600 euros. Condition is STELLAR. For that much money, I personally only want a dial in pristine condition. If you like the case size, also look at the 105.004 as the main difference will be in the lug design.

I'm wearing my 105.004 for a Roger Smith lecture tonight and the other photo is the 105.005 I very recently purchased but haven't had shipped to the US, yet. You'll notice, both are without the tachymetre on the dial. If you're willing to be patient, you'll find a clean dial out there. It took me YEARS to find the watch in stainless, at the right price, with the non-tachy dial. With the tachymetre, this watch will be much easier to come across, so if you want a clean look, you only need to have the patience to wait for it.

Movement looks clean is a good point

I would say this example is not the best at that price
You will find many other similar models even in better condition

At 3.6K I must say you scored a bargain, especially with the bracelete. Even though the 105.005 is most common 321, I would peg a very good raw example - with no service history - at at least 4K. Yes, a stellar dial is non-negotiable, as are the non-scratched/ non-polished lugs. Great find!