Unicrown: One Crown, Four Functions

Unicrown: One Crown, Four Functions

January 2026 · The Kintao Journal

The best mechanical ideas rarely announce themselves. We look for them in old watches and daily habits, then refine what still holds up. That approach led to our first watch, the Chapter 1.

Kintao Chapter 1 — early design study

Where it started

My appreciation for design started young, immersed in the engineering drawings of my father, an aeronautical engineer. Those drawings solved real problems with precision, and they still shape how I work.

A table I designed to fix my own laptop-at-home problem ended up with Herman Miller. At IDEO I worked on Zuowe, a home-office brand started during COVID. Both taught me the same lesson: watch how people actually use a thing, then design for that.

Zuowe — a home-office brand designed at IDEO

My fascination stayed with watches, particularly the quiet innovations of mid-century watchmakers. One Japanese maker introduced an internal rotating bezel through a single crown: intuitive, but hindered by a friction mechanism that could slip during wear. A Swiss rival geared the bezel to the stem, choosing between functions by pulling the crown out.

A mid-century single-crown internal-bezel watch on the wrist

Working in China

I’ve worked with Chinese manufacturers for over a decade and watched the finishing quality climb year on year. Chapter 1 is built with partners I’ve known for most of that time.

Fixing the internal bezel

The internal rotating bezel was innovative but flawed. Even modern world-timers still use friction bezels, lacking tactile precision and often leading to thicker cases. Two-crown compressor revivals separate the functions cleanly, but at the cost of simplicity.

We saw the opening: a single-crown internal bezel with real clicks, in a slim case. The Unicrown system, patent pending, is the result.

A single-crown internal bezel, in distinct clicks, in an 11 mm case.
The Unicrown clutch mechanism
Unicrown mechanism — detail

Getting the click right

Each bezel click was prototyped over and over: chamfer angles revised through AR checks and metal 3D prints until the resistance felt even in the fingers. The precision is something you feel rather than read about.

Chapter 1 prototype

Where this goes next

Chapter 1 is in final prototyping. The list hears everything first — progress, pricing, and the setbacks too.

— Sam McMorran, Founder

Reserve Chapter 1
Next

Where Chapter 1 Stands