ARTISANAL BEVELING METHOD
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Beveling can be present on many parts and in many different qualities. A bevel can for example be polished but also matt. The shape of the angle can also be different.
Some schools form angles whose width is twice the height. Also, some angles may have sharp edges at the corners, easier to make in outgoing angles than in incoming angles.
The key is to have a perfectly executed edge then the in or out angle is doable but of course mainly by hand.
A beveling without an incoming or outgoing angle can also be done with a milling cutter but is, although also interesting, less recognized among collectors. Also, although not well known, some watchmakers bevel the underside of the pieces. Thus, when you turn the piece over you will see for example that the face that touches the mainplate is also beveled. As a rule, when this part is also beveled, it is in a matte manner.