"Sternum" watch with zebrawood and black accents, featuring a sophisticated skeleton dial design.
"Sternum" watch features a striking zebrawood and black design with exposed mechanics, set against dark stone.
Starrum watch featuring a zebrawood and black design with an intricate, exposed mechanical style.
Starnum watch featuring a zebrawood and black design in a wooden box.
"Sternum", a watch with zebrawood and black accents, showcasing a stylish and intricate open-back design.
Starrum wristwatch featuring Zebrawood and black detailing with a mechanical, intricate design.
Starrum watch featuring zebrawood and black accents in an elegant, mechanical design.
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"Sternum" watch with zebrawood and black accents, featuring a sophisticated skeleton dial design.
"Sternum" watch features a striking zebrawood and black design with exposed mechanics, set against dark stone.
Starrum watch featuring a zebrawood and black design with an intricate, exposed mechanical style.
Starnum watch featuring a zebrawood and black design in a wooden box.
"Sternum", a watch with zebrawood and black accents, showcasing a stylish and intricate open-back design.
Starrum wristwatch featuring Zebrawood and black detailing with a mechanical, intricate design.
Starrum watch featuring zebrawood and black accents in an elegant, mechanical design.

Sternum

Zebrawood/Black

The expressive grain of real zebrano wood makes each sternum a unique nature.

42 mm · Adjustable length

649,00 €
649,00 €  €
Tax included.

Made from genuine natural materials, with unique variations in color and texture.
Currently sold out
  • 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 through 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

The breastbone (Sternum) is a flat, sword-shaped bone in the center of our chest. It acts as protection and safeguards our internal organs like the heart and lungs from external influences.

Our automatic Sternum model should remind you that, although a sheltered life may have great value, true happiness is quite often associated with risk.
What's included

Your Model

Storage Box

Tools & Accessories

Certificate

Guarantee Card

Sternum
Zebrawood/Black
Title: Default Title
649,00 €
649,00 €  €

Manual

Technical Details

Case

Diameter 42mm made of zebrano wood
Dial

Stainless steel in black
Movement

Automatic movement of Miyota
Strap

Size-adjustable, made of zebrano wood and stainless steel in black (fits on any men’s wrist)
Additional functions

Luminescent pointers (facilitate reading time in the dark)

Manual & more Information
No two pieces are the same
Over 2 million customers worldwide
Genuine natural materials
Automatic movement

Core features

Automatic movement

Automatic watches use your movement to power them and therefore do not require batteries or battery changes. Whether with a small viewing window or great skeletonized details, you can see your movement in action. But don't worry, with a power reserve of at least 35 hours, your watches will keep running even if you take a break.

Zebrawood

Exotic wood with character. Zebrawood is a unique and incredibly beautiful type of wood. It owes its name to the special striped pattern that turns our accessories into extravagant eye-catchers. The fine, high-quality wood is obtained from Microberlinia trees and comes mainly from tropical rainforests in West Africa or Asia.

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