"Sumo Ring", a sleek ring featuring walnut and ceramic, highlighting its modern and sophisticated design.
"Sumo Ring", a stylish ring made of walnut and ceramic, displayed on a hand with minimalistic tattoos.
"Sumo Ring", a sleek ring featuring a modern blend of walnut and ceramic, with a polished finish.
"Sumo Ring", a sleek ring featuring walnut and ceramic materials, with a modern, polished design.
"Sumo Ring", a stylish walnut and ceramic ring, featuring a sleek and modern design.
"Sumo Ring", a modern ring with walnut and ceramic accents, displayed on a finger.
"Sumo Ring": Elegant walnut and ceramic ring featuring a sleek, modern design.
"Sumo Ring" walnut and ceramic ring with sleek modern style.
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"Sumo Ring", a sleek ring featuring walnut and ceramic, highlighting its modern and sophisticated design.
"Sumo Ring", a stylish ring made of walnut and ceramic, displayed on a hand with minimalistic tattoos.
"Sumo Ring", a sleek ring featuring a modern blend of walnut and ceramic, with a polished finish.
"Sumo Ring", a sleek ring featuring walnut and ceramic materials, with a modern, polished design.
"Sumo Ring", a stylish walnut and ceramic ring, featuring a sleek and modern design.
"Sumo Ring", a modern ring with walnut and ceramic accents, displayed on a finger.
"Sumo Ring": Elegant walnut and ceramic ring featuring a sleek, modern design.
"Sumo Ring" walnut and ceramic ring with sleek modern style.

Sumo Ring (Walnut/Ceramic)

Genuine walnut meets high-quality ceramic — comfortable to wear and made to last.

$149.00
$149.00
Natural material:
Sumo Ring - A tungsten ring with a meteorite inlay, featuring a faceted, reflective design on a dark background. "Sumo Ring" features a striking agate inlay on a sleek tungsten band, exhibiting a bold and modern aesthetic. Keramik – Walnuss Tungsten – Lapislazuli Damast – Eiche Keramik – Whiskeyholz

Ring size: 62

Made from genuine natural materials, with unique variations in color and texture.
Delivery in 3–5 business days
  • Free shipping including tracking

    Our customers benefit from fast and free shipping. More information >

  • 24-month warranty

    During the first 24 months, we take care of any issues that arise through normal use. Learn more >

  • Free 24-day return | Club account

    Club membership is 100% free – members receive a prepaid return label at no extra cost. Even without an account, you can return within 24 days, with a small label fee. Here.

Packaged as a gift?
Description

Natural elegance from powerful materials. Sumo impresses with the dynamic look of walnut wood and the unique feel of real ceramic.

Our Sumo rings are simple but strong - the perfect companion for men who know that true strength comes from within!
Details
Ring width 8 mm
Size Available in different sizes
Material Black ceramics and real walnut wood
What's included

Your model

Storage box

Cork holder

Protective packaging

Genuine natural materials
No two pieces are the same
Over 2 million customers worldwide
Hydro-Defense Technology

Core features

ceramic

A timeless beauty. Ceramic is an exclusive material that has been used to craft high-quality timepieces since the 1980s. It is extremely robust, scratch-resistant, and provides a comfortable wearing experience. UV-resistant and waterproof, ceramic products retain their beautiful appearance for years. However, above all, we value the material for its infinite diversity of colors, which means that we can unleash our creativity and spoil our customers with new striking designs.

walnut wood

Elegant & durable. The distinctive grain and the diverse range of colors from chocolate brown to almost black brown make this type of wood one of our favorites for the production of watches, jewelry, sunglasses and handbags.
Walnut wood also impresses with its high density and the associated stability, which promises your piece of nature a long life!

Hydro-Defense Technology

Our HydroDef technology takes the resilience of natural materials to the next level. By means of a special resin coating, exposed elements of natural materials are significantly better protected from weather conditions (especially water).
Hydro-Def makes your piece of nature a faithful companion for all-purpose wear!

THE ART OF MASTERY

Where nature meets craftsmanship

Every HOLZKERN piece begins with genuine natural materials from the forests, mountains, and oceans of our planet. With precision, experience, and innovative technology, we preserve nature's unique character and make it wearable every day. The result: accessories that are as individual as you are and remind you of your uniqueness for years to come.

What HOLZKERN stands for

01
Naturally one of a kind

Nature through and through—that's what our watches and jewelry stand for. The unique grains and textures of wood and stone make every HOLZKERN product truly one of a kind.

02
The HOLZKERN family

When you shop with HOLZKERN, you support a young family business founded in Upper Austria in 2016.

03
Sustainably packaged

Our watches, bandlets, and jewelry come beautifully packaged in wooden boxes. We also use recycled paper to protect your order during shipping, and our self-sealing boxes mean we don't need plastic tape.

04
Order today, enjoy it in two-five days

As soon as you place your order, your one-of-a-kind piece is on its way to you. Too fast? No worries—you have 24 days after delivery to change your mind if you're not completely satisfied.

“With Holzkern I always want to express my love for nature and have set myself the goal of creating the perfect piece of nature for everyone.”

Elias Ferihumer

Founder of Holzkern