"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

$699.00
$699.00

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

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

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.

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