Seamaster 166.010: good or bad?

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The ref 166.010 should have a date window and powered by a 562 or 565.
 
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Thanks. I should have noticed that by just entering the ref number into google and comparing photos, but I missed the date window. So, no good and I'll pass on this one.
 
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The way i read the case back it looks like 165.010 not 166.010 if that makes any difference.
 
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You are right. My mistake. So, it seems legit. Are all parts original? I noticed some discoloration at the 6 o'clock marker on the dial, but otherwise it is in very nice condition. What is your opinion?
 
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It is a 165.010 and everything correct and in quite decent condition, just a bit tarnish on the 6 marker. Movement serviced - if there's proof for this then price would be reasonable.