Swiss Lever Movement

An interactive 3D simulation of a mechanical watch movement built with Three.js

Lifecycle
Playable

This web application provides a high-fidelity interactive 3D model of a mechanical watch movement. Users can zoom, rotate, and inspect the complex gears and Swiss lever escapement in real-time within the browser.

Details
Built with
Fable 5NEW
Strong

The creator explicitly credited Anthropic's Fable 5 in the original social media post describing the creation of this benchmark.

post says 'So I gave Fable 5 the watchmaker benchmark'

Posted by
We haven't verified this person made this build — attribution is our best guess from public sources.
Discovered
Discovered onX
Listed
Added to Dropday 2h ago · model released Jun 9, 2026
Evidence
Strong

The project is a live, interactive Hugging Face Space with a functional 3D demo.

Prompt
/goal Build the most realistic mechanical watch movement in Three.js – visible gears, escapement, balance wheel, all animated and mechanically coherent (gear ratios must actually make the hands tell real time). Build a camera system to inspect it from every angle and zoom level, use your vision capabilities to verify each part, and loop until you are 100% satisfied. Save a screenshot of every iteration to ./iterations/ so I can make a time-lapse.
Source