Uhren-Shop Produktdesign
back next
UNO 24


The UNO 24 one-hand watch gives the wearer the chance to approach time in a completely new and far more conscious manner. It presents the entire day at a glance. During the course of each 24-hour period, the single hand of the UNO 24 completes just one full rotation.The watch's special scale means that each time of day is indicated by an individual position of the precise hand.

Read more on page 2

Even a fleeting glance is sufficient to show the wearer instantly and clearly how far the day has already advanced. A delicate line marks the point of transition from one day to the next. The moment the watch hand crosses this line, the date jumps forward to show the new day.

In other words, the UNO 24 indicates the course of the day in analogue form:

The positioning of the watch hand on the dial corresponds to the position of the sun in the sky.

What is more, the precise scaling means that the time of day is shown with an accuracy of around five minutes – after a short period of familiarization, the wearer will be able to tell the time even more precisely. The real strength of the UNO 24, however, lies in its simple yet impressive ability to present "an entire day at a glance" in a precise, analogue graphic form.

1 2 3 Technical data

Image  Image Image

back next
UNO 24

UNO 24

40 mm
7.5 mm
43 g
RONDA 515.24H Swiss Made
Case material
stainless steel
Glass type
sapphire glass with scratchproof antireflective coating on both sides
Water resistance
finest, vegetable tanned leather wrist strap | steel link | rubber strap
Special features
24-hour one-hand watch
Country of manufacture
2 years; not applicable to parts subject to wear, or in case of improper use
from € 398.00
Back to description

Configure UNO 24

Case diameter
Strap type
Total price 398.00 € (incl. 19% VAT.) excluding delivery

24-hour watch UNO 24

The UNO 24 is the first 24-hour one-hand watch from Botta-Design. The unconventional 24-hour one-hand display principle used in the UNO 24 allows the wearer to get a sense of how time is progressing over the day as a whole at a single glance. While each position of the hands can have two meanings in a conventional watch – for example 4:00 am or 4:00 pm – the position of the hand in the UNO 24 is clearly assigned to a particular time of day. The use of the one-hand principle and the intelligent design of the watch face means even a casual glance is enough to tell how far the current day has progressed. This is because the dial of this 24-hour watch is divided by an artificial horizon into a day half and a night half. In the early morning the hand rises above the horizon on the dial, symbolizing the rising sun. Once the sun has reached its zenith, the hand also points vertically upwards. At the onset of evening, the hand reaches the bottom “night” half of the dial – when it reaches the date line at midnight the date jumps forward and the next day begins.

Revolutionary 24-hour watch

Once again, Botta-Design pioneered a new development: ever since its introduction, the UNO 24 has triggered a wave of copycat 24-hour one-hand watches. The ingenious idea of a wristwatch with a 24-hour display and just one hand is the logical follow-up to the UNO one-hand watch which Klaus Botta developed back in 1986. The UNO employs the one-hand principle to display the current time clearly and unambiguously in a 12-hour format. The UNO 24 goes one step further – it shows the progression of time over the course of the day in clear and graphic analogue form. Although the UNO 24 allows the wearer to obtain a very rough idea of the time at a glance, the delicate hand and the fine scale mean that the time can be told to an accuracy of just a few minutes after a brief period of familiarization. Thus the UNO 24 is an exceptional 24-hour watch with just one hand that enables its wearer to approach time in an entirely new manner.