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If it’s genuine, it’s worth the money.
Google 168.050 and compare with others.
You should ask for movement photos and any service history particularly because it’s a chronometer movement.
The case has the original brushed steel effect and hasn’t been polished.
Even though the photo isn’t the sharpest, I’m almost convinced that I can make out the Omega logo in the centre of the crystal and the hands and dial look okay to me (although I’m not an expert).
What little you show of the bracelet suggests that it’s correct, which the correct end pieces and, if I’m right about that, the bracelet itself is probably worth €250ish.
Let us know what you decide. Good luck.