One good watch. Worn every day.
Radiant is a mechanical field watch for people who would rather own fewer, better things. Swiss craftsmanship, a calm and honest dial, and a size for every wrist. Made for the office, the trail and every ordinary day in between.
Clear at a glance. Quiet the rest of the time.
Field watches were made to be read quickly, in poor light, without a second look. Radiant keeps that promise: a full set of Arabic numerals, a precise minute track and applied markers finished in two tones.
There is no date window breaking the layout and no branding competing with the time. The sapphire crystal carries three layers of anti-reflective coating on the inside, so the dial stays readable in bright sun instead of turning into a mirror.
Wear it every day. Don't worry about it.
A watch only earns its place if you can forget you are wearing it. Radiant is built from materials chosen to take daily life in their stride, so it can stay on your wrist from Monday morning to Sunday night.
316L steel
Surgical grade, hypoallergenic and brushed, so everyday knocks blend in.
Sapphire crystal
Second only to diamond in hardness. Keys, zips and desk edges won't mark it.
Incabloc protection
Shock protection guards the balance, and a crown guard shields the crown.
Made for real days, not display cases.
Monday to Friday. Wound by your day.
The ordinary movement of a working day keeps it wound. Wet streets and a sudden downpour change nothing: the case is sealed to 10 ATM.
Pool, lake or sea. Take it along.
10 ATM covers showers and swimming. Keep the crown pushed in, rinse it in fresh water after salt or chlorine, and leave the diving to a dive watch.
Dust and heat? Still ticking.
Brushed steel, sapphire and a self-winding movement that keeps going as long as you do. No charger to pack, no battery to run flat.
A Swiss heart that winds itself.
Inside is the Sellita SW200-1 in its Elaboré grade, one of the most trusted automatic movements in Swiss watchmaking. A rotor turns with your wrist and quietly winds the mainspring.
Because it is so widely used, any good watchmaker can service it, today and decades from now. That is what makes a mechanical watch something you keep.
Assembled by hand in Switzerland.
Radiant is designed in Poland and built with Chrono AG, a family-owned Swiss watchmaker with more than 40 years of experience. Every watch is assembled and checked in their workshop, a building dating from 1915 in one of Switzerland's historic watchmaking towns.
Swiss Made is a legal standard, not a label. It requires a Swiss movement, assembly and final inspection in Switzerland, and at least 60% of the manufacturing cost to be Swiss. Radiant meets all three.
Slim enough for a shirt cuff.
From 10 mm thin, which is slim for an automatic. It sits flat on the wrist and stays comfortable at a desk all day.
Less, but done well.
Radiant was drawn around a single question: does this detail help you read the time or live with the watch? If not, it went. What is left is quiet, balanced and easy to wear with anything.
Five dial colours are taken from nature, from sand and moss to the Baltic Sea. That restraint was recognised with two of the world's best known design awards.
A new strap in seconds.
Quick-release spring bars mean no tools and no trip to a jeweller. Slide the small lever, lift the strap away, click the next one in.
Every strap is woven from recycled PET and is fully vegan. Six colours, 18 mm wide for the 32 mm case and 20 mm for the 37 and 40 mm.
One watch. Any wrist.
Three case sizes, five dials and six straps, so it suits whoever wears it. Pick the size for your wrist and the colours for your life.
Five dials. Six straps. Thirty ways to wear it.
Every dial works with every strap, so your watch can change with you. Start with one of our six recommended sets, or build your own.
A size for every wrist.
Most automatic watches are made for larger wrists. Radiant starts at 32 mm, one of the smallest automatic field watches you can buy, so slimmer wrists no longer have to choose between quartz and a watch that looks borrowed. Drawn here to scale.
32mm
Compact and light. Sits neatly on a slim wrist, under any sleeve.
- Lug to lug
- 39 mm
- Thickness
- 10 mm
- Weight
- 50 g
- Strap width
- 18 mm
37mm
The balanced middle. Unisex, and easy to read at arm's length.
- Lug to lug
- 45 mm
- Thickness
- 10.3 mm
- Weight
- 63 g
- Strap width
- 20 mm
40mm
Classic field watch presence, and still only 10.5 mm thin.
- Lug to lug
- 48 mm
- Thickness
- 10.5 mm
- Weight
- 70 g
- Strap width
- 20 mm
Not sure? See it on your wrist.
Enter your wrist size for a recommendation, then compare all three cases on the same wrist.
Around 17 cm usually suits the 37 mm. Tap a size to compare.
Try it with your phone camera.
Scan the code to open the Radiant page on your phone. No app to install.
The camera try-on shown here is a concept mock-up. The QR code opens the Radiant product page on mudita.com.
Take a closer look. Turn it in your hand.
Drag to see Radiant from every side, and zoom in on the crown, the brushed case and the engraved caseback.
Honest, down to the back.
Turn it over and the essentials are engraved into the steel: Swiss Made, Automatic, sapphire crystal, 316L stainless steel and 10 ATM.
Every Radiant comes with a Certificate of Authenticity and a 24-month warranty. With care and a service every three years, it is made to keep going far longer than that.
The details, in writing.
Case
- Diameter
- 32, 37 or 40 mm
- Lug to lug
- 39, 45 or 48 mm
- Thickness
- 10, 10.3 or 10.5 mm
- Weight
- 50, 63 or 70 g
- Material
- Brushed 316L surgical-grade stainless steel, hypoallergenic
- Crystal
- Sapphire, anti-reflective coating
- Water resistance
- 10 ATM, showers and swimming, not diving
- Crown
- Protected by an integrated crown guard
Movement
- Calibre
- Sellita SW200-1 Elaboré, Swiss automatic
- Frequency
- 28,800 vibrations per hour
- Jewels
- 26
- Power reserve
- 38 to 41 hours
- Accuracy
- ±7 to ±20 seconds per day
- Shock protection
- Incabloc
- Winding
- Automatic, or by hand with the crown
- Service
- Recommended every 3 years at an authorised service centre
Dial and strap
- Dial colours
- Natural White, Sand Beige, Moss Green, Baltic Blue, Charcoal Black
- Numerals
- Twelve Arabic numerals in a custom Mudita typeface
- Luminescence
- Swiss Super-LumiNova BGW9 on hands and hour markers
- Strap
- Recycled PET textile, vegan, quick release
- Strap colours
- Sand Beige, Charcoal Black, Moss Green, Baltic Blue, Pebble Gray, Natural White
- Strap width
- 18 mm on 32 mm, 20 mm on 37 and 40 mm
- Origin
- Designed in Poland. Hand-assembled in Solothurn, Switzerland, with Chrono AG.
- In the box
- Watch with strap, microfiber cloth, manual, warranty and Certificate of Authenticity
- Awards
- iF Design Award 2026. Red Dot Award 2026, Product Design.
Good questions, plain answers.
Does it need a battery or charging?
I sit at a desk all day. Will it keep running?
What happens if I don't wear it for a few days?
How accurate is it?
I can hear it whirring. Is that normal?
Can I swim with it?
Which size should I choose?
What if it doesn't suit me?
