Patek Philippe

One of the most obvious ways to distinguish a hand finished bevel from a machine finished one is its profile: if rounded, the anglage is most likely hand done. But with Patek it's different, their anglage is rounded off but still machine finished, so it m... 

The machine they're made on was hand made over 200 years ago.

meaning? No, I'm not being anything other than willing to learn.

Patek machines the chamfers. Then they finish the chamfers by hand to remove any machining marks and give a final polish. However, sometimes, the machining marks aren’t completely removed. In the case of JLC (on most of their watches), they simply machine... 

At least for low and midrange models.

The anglage on Patek Philippe movement parts (such as plates and bridges) are hand done with the assist of various tools (machines) that have a spinning effect. The spinning effect either cuts or polishes said part. Nearly all high anglage finishing from ...