The Unicrown Internal-Bezel System
How It Works
A custom mechanical clutch sits within the crown stem. Each position engages a single, clearly defined function.
Position A
Clockwise: Winding
Anti-clockwise: Internal bezel rotation
Position B
Time setting
Position C
Date correction
Engagement between functions is clear and settled. There is no hesitation, overlap, or drift.
Each interaction feels deliberate rather than tentative.
What This Changes
Earlier single-crown internal-bezel watches proved the concept, but often at the cost of vague engagement or delicate handling.
Unicrown resolves those compromises.
Modern machining tolerances allow the mechanism to remain stable, repeatable, and predictable in daily use.
Engineering Approach
The Unicrown clutch is based on a proven two-way ratchet-and-pawl principle and refined for watchmaking.
Each turn of the crown engages with a clear, tactile mechanical click. Resistance is even. Engagement is immediate.
Rather than feeling novel or experimental, the mechanism feels familiar in use: stable, predictable, and composed.
Over time, the interaction fades into habit. The crown never asks you to be careful. It responds exactly as expected.
Patent
Protected by Patent No. CN2025108245077
A Quiet Improvement
