The mechanism advances once a year. The century hand moves but ten times in a thousand years — friction measured against erosion, not deadlines.
Marine-grade titanium, dry-running ceramic bearings, weathered bronze cams — components selected to survive 10,000 winters without a maintenance crew.
Every part is legible to a future engineer with bronze-age tools. No documentation assumed, no power grid presumed, no software to recover.
Buried in a limestone shaft beneath West Texas stone, the monument asks each visitor a single question — what is worth keeping for ten millennia?