Ok,
180cm is about 5'10" my height.

About 35 years ago I bought my old Colnago Super. About 60cm frame. And, it fit perfectly until I recently joined Bike Forums.

I'm a bit more torso than legs, which means the long frame is comfortable.

She's a tight fit when I stand over it, but not uncomfortable. I rarely stand with 2 flat feet over the frame though (one foot on a pedal?).

More legs and less torso would mean a looser crotch fit, but a longer top tube could be too long for the body.

A 61cm or 62cm frame would be just a bit tighter, and would be hard for me to stand over.

The other issue is whether this is a vintage frame with a horizontal top tube, or a new frame with a sloping top tube. If it has a sloping top tube, then frame sizing would be complex, but you may have enough standover clearance.

A final issue is the length of head tube. This more or less sets the minimum handlebar position. So, a tall head tube means a high handlebar position. That may be beneficial if you don't like leaning over, but less appropriate if you wish to get quite a bit of bar drop, and to duck low under the wind.

Danger to the family Jewels... is overrated with large frames. Falling on them just doesn't happen.