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Botta introduces the UNO 35: for the 35th anniversary of its first and perhaps most important watch, the German watchmaker launches another anniversary model. It is available in a total of four different references. The UNO 35 can be ordered with a black or white dial. Also selectable is the drive: automatic (44 millimeters in diameter) or quartz (40 millimeters in diameter). Very simple and clear, just like the UNO itself. 

Typical UNO – and yet very different


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How do you create the anniversary model of a design icon without leaving the character of the original? This is probably the question that designer and developer Klaus Botta asked himself when he designed the “35 Edition”, the anniversary model of the current one. In contrast to the first special model for the 30th anniversary, the differences between the 35 Edition and the original lie more in the details. However, they stand out even more here. 

You could almost take that literally when you look at the fiery red and needle-fine hour hand of the 35 Edition.

Whether on the white or black dial, the hour hand sets itself confidently in the scene. But that’s exactly what it’s supposed to do. After all, it also assumes complete responsibility for the correct time display. And it doesn’t do a bad job at all. Contrary to the fear that you can only estimate the time with a single-hand watch, reading the current time on the UNO 35 Edition is surprisingly fast and precise. With a little practice and skill, it’s easy to read off the time to within 1-2 minutes.

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Botta UNO 35 Limited Edition
Photo © 2023 by WATCHDAVID® David Drilling – All rights reserved

I would not have expected that. But, strictly speaking, the UNO, the original of the single-hand watches, is not about minutes or even seconds anyway. Rather, it’s about an overview of time and serenity in its appearance. And the UNO 35 Edition fulfills this with the same bravura as the original from 1986, only it is significantly more eye-catching and sportier than the latter.

The association with motorsports is not entirely wrong either, as Klaus Botta himself likes to use the analogy to the car speedometer, which also gets along just fine with only one hand. Here, too, a second hand would unnecessarily increase complexity and thus impair spontaneous readability. The same applies to the UNOs. 

That’s why I’m pleased that 35 years after its development, the UNO has remained true to its philosophy, displaying time with sufficient accuracy and unsurpassed composure. 

The new Botta UNO references in detail

Botta UNO 35 Limited Edition
Photo © 2023 by WATCHDAVID® David Drilling – All rights reserved

In addition to the two dial colors, black and white, the UNO 35 Edition also comes in two movement versions: The automatic version sits in a 44mm stainless steel case, while the quartz version features a 40mm tri-titanium case. Caution: don’t be fooled by the large numbers. Due to the lugs cleverly integrated into the cases, the “lug to lug distance” is smaller (!) than the respective case diameter. 

As a result, both watches not only appear significantly smaller than the pure numbers would suggest, they are also surprisingly comfortable to wear. By the way, even on slim wrists. Especially the strikingly flat 40mm quartz version is therefore also appreciated by the progressive part of the ladies’ world.

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The excellent wearing comfort is mainly due to the BOTTA-typical case architecture, which gives the hand maximum freedom of movement. The case construction is an all-around high-quality and convincing solution. 

Botta UNO 35 Limited Edition
Photo © 2023 by WATCHDAVID® David Drilling – All rights reserved

Both case versions have a screw-in case back. In the automatic version, a sapphire crystal allows an unobstructed view of the Swiss Sellita SW 200 in the noble Elaboré finish, while the quartz version with the Ronda caliber 1062 uses a precisely milled titanium back.

Speaking of sapphire crystal: both versions show the time through a double domed sapphire crystal with anti-reflective coating on both sides and a solid thickness of 1.4 mm.

In addition to the dial color in black or white, you can choose from a range of leather and metal bracelets to wear the UNO 35 just the way you like it.

Botta UNO 35 Limited Edition
Photo © 2023 by WATCHDAVID® David Drilling – All rights reserved

Of course, the saddle leather strap is a particularly good match for the UNO 35, with its four darts in the same color as the hands, perfectly rounding off the watch’s striking appearance.

If you decide on the automatic version, you should not wait long. The model is limited to only 35 pieces per dial color. On the saddle leather strap shown here, it costs 1,560.00 euros. The quartz version is cheaper. It is available from 598.00 euros.

Below you will find all links to the watch!

More about Botta and the UNO 35 

Here you can find the automatic/black version in the store

Version automatic/white in the store

The version quartz/black in the store

Quartz/white in the store

More Botta watch reviews in my blog

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Watch photography


Technical Details

NameUNO 35

Reference numberN/A


CategoryBauhaus watches / single-hand watches

Price from1,560.00 euros (automatic), 598.00 euros (quartz)

Warranty2 years

Case Material316L stainless steel / PVD coating / titanium

Diameter40.00 mm / 44.00 mm

High8.80 mm (automatic), 5.40 mm (quartz)

Watch Glassanti-reflective coating / Sapphire Crystal

Watch TypeAutomatic / Quartz

Waterproof5 bar (50 m / 164 ft)

Movement NameSellita SW200-1 (elaboré, automatic version), Ronda 1062 (quartz version)

Power ReserveN/A

Functionsdate / hour

Dialwhite, black

Indicesdashes, arabic numerals

Special Featureslimited watch / transparent caseback

BezelPVD coating / stainless steel

Bracelet Colorblack

Bracelet Materialleather

Clasppin buckle

Auch verfügbar auf Deutsch