Looks like a 168.017. Some losses on the dial, and some signs of corrosion around the caseback gasket, are the only problems I can spot in these photos. And hands look a trifle thick for this variant. But in your position I would ask for more complete and better lit photos (case from sides and at angles, movement in different positions, lugs without straps and, especially, inner caseback) before making an evaluation.
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