Every time I see a'79 or '80 O up for grade opinions I think here's another slider and start with an AU opinion before I even look at the coin and then try to prove my predetermined opinion wrong. This coin did that - MS62+ for me. Just a tad too many little obverse tics to sway me to 63. Nice example for a '79-O.
the strike on the one is typical for the year. a little above average are normal. surface preservation is AVG- as there are quite a few marks, scratches and scuffs on both sides. luster appears to be broke on the cheek so that will keep it out of 65 range for me. I'm with the majority on this one. MS62