The tool used by Dominique Buser and Cyrano Devanthey, of Oscillon, to shape the pivots of the wheels in their timepieces into their final form.

A two-handed operation that is akin to rubbing your belly and tapping the top of your head at the same time, it takes a good deal of patience, practice, and hard-won skill to master this machine at the level of precision needed to craft watch parts.