Zenith Chronograph A783 Automatic 1971,,, worth buying?

Hi I Hope you are enjoying good health ,,

I Would like if somebody can help me to make a good decision about this Zenith Vintage,, the watch is selling in Lorologiese , and I think looks beutiful. (is important to say that andrea (the owner) all the time has been very kind to me)

I have questions that I am not sure about, I have been collecting watches only a few years ago, but I realize that I make decisions in an emotional way that had cost me money.

My questions are:
- the back of the lugs was restored or is ok?
- the bezel is overpolished? in general is overpolished?
- the little pitted in caseback could be a problem in the future? or is normal because the age watch?
- the rotor was change to 400 movement, not 3019 (original) they disclosure this in his page,, does affect the value of the watch?

I really aprecciate your help to make a decision

I hope you can excuse me for the errors in the grammar,

Regards

Manuel Cordova

I would not be interested in this piece. There are too many things wrong with it. I have heard about instances where the Zenith repair centre replaces a worn 3019 mainplate with a new one that is marked 400. That may have been the case here. For that reason, my 3019 will never go to the Zenith repair centre.