Help with this never-seen before vintage Seamaster 200?

Hi, I'm considering buying this Seamaster 200 from a guy on fb marketplace. Problem is I can't find any post to gather any info from regarding a possible seamaster 200 other than the submarine version which is defo not the one I'm after.
Can't find any past sold item on eBay either, or any other image. Doesn't seem like a redial, although there's a missing decimal, any help identifying the legitimacy of this watch as well as if it's original and if it holds any value at all would be much appreciated.

The seller doesn't know the history of it, bought it this way and wants 350 dollars cal is 1012, sorry about the very low res pics, this is the best he could send.

Thanks!

I would like to add that he's also selling these other omegas, if you have any advice on them it'd be much appreciated:
The golden Geneve one he claims to be made of gold and wants 850 for it, for the jumbo cal 256 wants 600.
Thank you all of any advice!

Just out of curiosity (I'm new to all this and genuinely interested) why would someone redial a watch with 200 rather than 300 maybe or 600? Why choose something that doesn't even exist?

Either they don't know or they can claim it's a rare variant, which is why you can't find anything about it.

I’m sure it wasn’t an intentional choice - some redialer just couldn’t remember if it said 200 or 300 and they guessed wrong.

By the way, there are several other tells that it’s a redial (omega logo, omega font, 200 centering, Swiss text).