"Supersonic bracelet featuring a wood and gray metal design, elegantly styled for a bold look."
"Supersonic" bracelet features a koa and gray design with a chain and wood accents, offering a stylish, natural look.
"Supersonic" bracelet featuring a koa wood and gray metal design against textured black rocks.
"Supersonic" bracelet featuring a unique blend of koa wood and gray metal elements on a wrist.
"Supersonic" bracelet featuring Koa wood and gray accents, worn on a wrist.
"Supersonic" necklace combines koa wood and gray metal, featuring a sleek, textured design.
"Supersonic" bracelet featuring a koa and gray design with mixed materials, styled on a wrist.
1/7
"Supersonic bracelet featuring a wood and gray metal design, elegantly styled for a bold look."
"Supersonic" bracelet features a koa and gray design with a chain and wood accents, offering a stylish, natural look.
"Supersonic" bracelet featuring a koa wood and gray metal design against textured black rocks.
"Supersonic" bracelet featuring a unique blend of koa wood and gray metal elements on a wrist.
"Supersonic" bracelet featuring Koa wood and gray accents, worn on a wrist.
"Supersonic" necklace combines koa wood and gray metal, featuring a sleek, textured design.
"Supersonic" bracelet featuring a koa and gray design with mixed materials, styled on a wrist.

Supersonic

Koa/Gray

Real coa wood and careful craftsmanship make each piece of Supersonic a piece of jewelry for many years together.

£75.00
£75.00
Tax included.
Natural material:

Koa/Dark gray

Walnut/SilverSilber – Walnuss Koa/Dark grayDunkelgrau – Koa Marble/SilverSilber – BlauerMarmor Aventurine/Dark grayDunkelgrau – GrünerAventurin Obsidian/SilverSilber – Obsidian Zebrano/Dark grayDunkelgrau – Zebrano

Made from genuine natural materials, with unique variations in color and texture.
Delivery in 3–7 business days
  • Free shipping including tracking

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

  • 24-month warranty

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

  • Free returns till January 31, 2027 | Club Account

    So you can shop for your Christmas gifts with no risk at all, we’re extending our return period until January 31, 2027. Club membership is 100% free—members receive a prepaid return label at no additional cost. Even without an account, you can return items until January 31, 2027; a small label fee applies.

Packaged as a gift?
Description

Just Bead it! With a Holzkern bead, you'll always be at the top of the jewelry game. Discover our unique bracelet made from genuine koa wood beads plus a striking stainless steel chain and feel the combination of nature and design.
Details
Material Real coa wood with fine grain and 316L stainless steel in dark gray
Length 177-249mm (adjustable)
Ring width 8 mm
What's included

Your model

Storage box

Cork holder

Protective packaging

Supersonic
Koa/Dark gray
Title: Default Title
£75.00
£75.00
Genuine natural materials
No two pieces are the same
Over 2 million customers worldwide

Core features

koa wood

Aloha! koa wood comes from the South Seas paradise of Hawaii, where it is used to make surfboards and ukuleles. We also love the warm wood with its fine surface texture and golden to reddish-brown color tones, which make each unique piece a one-of-a-kind accessory. You don't have to fly to Hawaii any more, we bring Hawaii to you!

316L Stainless Steel

For our watches, jewelry and accessories, we use exceptionally robust 316L stainless steel. Originally used in surgery, it is also known as surgical steel. Hypoallergenic, guaranteed rust-free and virtually indestructible, it offers the perfect combination of strength and elegance while giving our natural materials a long life and unique shine.

Simply open & adjust

Necklaces and bracelets with a silicone ball are particularly easy to open, close and adjust. First the carabiner is hooked in (if present on your jewelry), then you can pull your necklace or bracelet to the desired length. The combination of silicone and metal holds firmly, so you never have to worry about losing your jewelry. No more sporty contortions when putting on jewelry - our new clasp makes it easy and convenient!

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.

Here’s what happens after you place your order

Strict quality control

Before it is packaged and shipped, each piece is individually inspected to ensure that it truly meets our high quality standards.

Secure packaging

If it passes the test, we’ll package it carefully, securely, and as plastic-free as possible. We include tools and replacement links with watches and Bandlets so you can adjust your product to your size right away at home.

100% satisfied or your money back

Just a few days later, you’ll be thrilled to find your package waiting on your doorstep! Unpack it quickly and try it on—you can test your items for 24 days and simply send them back if you don’t like them.

We're here for you

If you have any questions or issues, you can reach us through our service form. No waiting on hold or automated responses—our customer support team consists of 15 employees who are always committed to ensuring your satisfaction.

“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