Hello! I've had a grandparent's watch stored away for 15+ years and recently stumbled back across it and realized it is an Omega Seamaster. Upon realizing this, I'm considering having it restored. This watch is in incredibly poor shape (loose second hand, date border, and minute markers), so before I have it restored, I would like to know if it's a genuine Omega. Any insight this community could offer would be incredibly helpful. See photos below.
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