I build a mechanical watch face: a real gear train for a watch with no gears

Automated excerpt

Some of them show a mechanical movement: Skeleton, Regulator, Skeleton Bridge and Smoked Crystal. Every surface has the same flat brushed texture. How long the movement runs is yours to set, with ten seconds, five seconds and off. The fourth wheel decides where the small seconds go. Every mechanical face has a setting for how long the movement keeps running after a wrist raise: ten seconds, five seconds, or off.

Selected automatically from source text; not independently written or fact-checked. Read the original for full context.