24-hour watch with one hand

One-hand watch UNO 24 by BOTTA – The original 24-hour watch

What would a maximally simplified yet consistently logical wristwatch look like? Probably like the UNO 24 by designer Klaus Botta. A watch with just one hand and a 24-hour display. After all, a day on Earth has 24 hours, not 12. The sun-synchronous 24-hour scale of the UNO 24 makes the time display unambiguous, whereas a 12-hour watch always carries two possible meanings. For example, a hand pointing to “4” can mean 4 a.m. or 4 p.m. (16:00). Of course, such a fundamentally different watch is not intended for reading exact minutes or even seconds—but that is not what the UNO 24 is designed for. Instead, it encourages a more relaxed, holistic perception of time. The strength of the UNO 24 single-hand watch by Botta-Design lies in its ability to represent the entire day at a glance as an analog graphic. It enables its wearer to engage with time in a significantly more relaxed way. Here you will find a clear explanation of the 24-hour single-hand principle, as well as a visual guide on how to read a 24-hour watch. Make your time visible: the BOTTA UNO 24 Day Configurator shows you how your day really unfolds.

TRI-TITANIUM LIMITED

UNO 24 Edition-15 watch

Tri-Titanium | One hand | 24 hours

Automatic watch from €2.220 Quartz watch from €740

TRI-TITANIUM

UNO 24 watch

Tri-Titanium | One hand | 24 hours

Automatic watch from €1.950 Quartz watch from €590

TRI-TITANIUM NEW

UNO 24 Your Time by BOTTA Automatic watch

UNO 24 Your Time by BOTTA watch

Tri-Titanium | One hand | 24 hours

Automatic watch from €2.150 Quartz watch from €690

ALUMINIUM

UNO 24 Singlehand-24-hour-wall-clock

Aluminum | 24h-One-Hand | 38 / 50 cm

To the wall clock from €950

NEW ALUMINIUM SLATE

UNO 24 Slate Wall Clock

Aluminum/Slate | 24h-One-Hand

To the wall-clock from €1.950

The UNO 24 - 3d configurator

With our new 3D configurator, the UNO 24 becomes a unique experience even before you wear it for the first time. Directly on your device and without any additional software, you can intuitively create your personal version yourself – from the dial design and case color to the strap option. Rotate the watch in real time, view it from every angle, and zoom in down to the smallest detail. In this way, you can discover the construction, visual impact, and character of the UNO 24 in a surprisingly vivid way. Simply give it a try.

To the UNO 24 - 3d configurator

The UNO 24 - day configurator

With our new daily configurator, not only does the UNO 24 become visible, but also your personal relationship with time. Directly on your device and without any additional software, you can map out your typical daily routine based on a UNO 24 model, a wall clock, or a neutral 24-hour dial. Enter start and end times, assign a color to each activity – and instantly your day takes shape as a colored arc around the dial. Suddenly, time becomes surprisingly clear. Visualize your own daily routine. You may be surprised.

To the UNO 24 - day configurator

UNO 24: The 24-hour single-hand watch – as logically structured as a day on Earth.

A day has 24 hours, not just 12. Following this logic, the UNO 24 displays all hours of the day on its 24-part special scale. Its dial is divided—just like a day on Earth—into a daytime half (top) and a nighttime half (bottom). The hour hand symbolically follows the course of the sun. It begins its rotation at 0:00 in the lower (dark) half, then rises from the night half into the day half at around 6:00 a.m.

At 12:00 noon, it reaches its zenith at the top of the dial, before gradually moving back toward the horizon line in the right quadrant of the dial.

At 18:00, the hand transitions back into the dark half of the dial, eventually reaching the date line—symbolizing the dateline—around 24:00. As it crosses this line, the date display advances to the next day.

A new day begins.
We call this highly analog representation of a day “sun-synchronous.”

Designed in Germany, Handmade in Germany.

UNO 24 – Single-hand 24-hour watch

One-hand watch UNO 24 by BOTTA – The original 24-hour watch

UNO 24 Edition-15 watch

UNO 24 watch

UNO 24 Your Time by BOTTA watch

UNO 24 Singlehand-24-hour-wall-clock

UNO 24 Slate Wall Clock

The UNO 24 - 3d configurator

The UNO 24 - day configurator

UNO 24: The 24-hour single-hand watch – as logically structured as a day on Earth.