The Idea That Needed Finishing.
How It Works.
A custom clutch sits within the crown stem.
Each position engages one clearly defined function.
There is no overlap, hesitation, or drift.
Each interaction feels intentional rather than tentative.
What Modern Tolerances Change.
Modern machining allows the engagement tolerances that earlier systems couldn't hold.
The crown positions don't blur.
The bezel doesn't slip.
The interaction feels familiar, stable, and composed.
Engineering Approach.
The Unicrown clutch is based on a proven two-way ratchet-and-pawl principle, refined for watchmaking and adapted to the tighter tolerances available today.
Modern CNC machining allows us to hold the engagement tolerances that make the system feel confident rather than tentative. The crown never asks you to be careful. It responds exactly as expected.
What It Feels Like.
Each turn of the crown engages with a clear, tactile click. Resistance is even. Engagement is instant.
The bezel doesn't slip. The crown positions don't blur together. The interaction feels familiar rather than experimental.
Over time, it fades into habit. You stop thinking about which position does what. Your hand just knows.
Patent
Protected by Patent No. CN2025108245077
A Quiet Improvement
