Newbie Here: DateJust Turn O Graph 1625

[eliu908]

Hey, I just snatched up my first rolex. The seller said it is a a vintage stainless steel and 18K gold Rolex Thunderbird (model 1625, made in about 1977 according to the serial number in running condition. The case (minus the crown) is 36 mm in diameter.Rolex 1570 free sprung 26 jewel movement adjusted to 5 positions and temperature.

I am planning to get it authenticated. The seller said the case, the crown and movement 100% guaranteed original. The bezel is gold and the diamonds on the bezel are real. The dial is aftermarket. Can anyone give me a quick appraisal? Any concerns through just the pictures on authenticity?

I think it looks pretty sexy.