Koster | Nato

€235,00
Color:

SPECIFICATION

DESCRIPTION

DELIVERY & RETURNS

Dial Material: Recycled Ocean-bound Plastic
Case Size: 39 mm
Case Material: Stainless Steel
Strap Material: Recycled Ocean-bound Plastic
Strap Width: 20 mm
Crystal: Sapphire Glass
Water Resistance: 20 ATM
Movement: Ronda 515 24H (Far East)
GMT: Yes

We believe in a life lived, not scrolled.

The Koster was born on the Swedish West Coast. A place where granite meets the deep blue, and the weather decides your schedule. It is built for the distinct rhythm of a life in motion.

From the morning plunge to the boardroom focus. From exploring new islands by boat with friends to dinner as the sun sets. Waking up the next day to waves crashing in a new place, clearing the inbox over morning coffee, then taking the scenic route to your lunch meeting.

In a world of constant notifications, the Koster is your analog anchor. A reminder to look up, disconnect from the feed, and reconnect with the rush of real life.

Triwa Koster. Swedish Soul. Ocean Heart. Ready for anything.

European orders are delivered within 1-3 days
International orders are delivered within 2-5 days
We have a 90-day return policy. Read more here.

Koster | Nato

€235,00
Color:

SPECIFICATION

DESCRIPTION

DELIVERY & RETURNS

Dial Material: Recycled Ocean-bound Plastic
Case Size: 39 mm
Case Material: Stainless Steel
Strap Material: Recycled Ocean-bound Plastic
Strap Width: 20 mm
Crystal: Sapphire Glass
Water Resistance: 20 ATM
Movement: Ronda 515 24H (Far East)
GMT: Yes

We believe in a life lived, not scrolled.

The Koster was born on the Swedish West Coast. A place where granite meets the deep blue, and the weather decides your schedule. It is built for the distinct rhythm of a life in motion.

From the morning plunge to the boardroom focus. From exploring new islands by boat with friends to dinner as the sun sets. Waking up the next day to waves crashing in a new place, clearing the inbox over morning coffee, then taking the scenic route to your lunch meeting.

In a world of constant notifications, the Koster is your analog anchor. A reminder to look up, disconnect from the feed, and reconnect with the rush of real life.

Triwa Koster. Swedish Soul. Ocean Heart. Ready for anything.

European orders are delivered within 1-3 days
International orders are delivered within 2-5 days
We have a 90-day return policy. Read more here.

Customer Reviews

Based on 3 reviews
100%
(3)
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J
Joakim L

Long-time Triwa user here, and I am always impressed by how the brand blends timeless design with modern details. The Koster Rubber feels genuinely high quality from the moment you pick it up. It is comfortable, well made and has that clean, confident look that works for both everyday wear and more dressed occasions.

U
Upe Esser

Just received my green Koster on green rubber. Watch feels great in shape and size and the dial is awesome. The rubber strap is extremely soft and comfortable and the clasp feels really solid. 10/10

J
Jonte

Just received it, looks and feels nice. The dial pattern is subtle which I think gives it a clean look IRL.

Customer Reviews

Based on 3 reviews
100%
(3)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
J
Joakim L

Long-time Triwa user here, and I am always impressed by how the brand blends timeless design with modern details. The Koster Rubber feels genuinely high quality from the moment you pick it up. It is comfortable, well made and has that clean, confident look that works for both everyday wear and more dressed occasions.

U
Upe Esser

Just received my green Koster on green rubber. Watch feels great in shape and size and the dial is awesome. The rubber strap is extremely soft and comfortable and the clasp feels really solid. 10/10

J
Jonte

Just received it, looks and feels nice. The dial pattern is subtle which I think gives it a clean look IRL.

THE STATEMENT

The dial is crafted from recycled Ocean-bound Plastic, featuring a rich 3D wave texture that captures the deep, restless motion of the sea. It serves as a grounding force, a piece of raw nature on your wrist that brings clarity to high-pressure moments.

Dark, distinct, and sophisticated, it looks as natural on the boat in the archipelago as it does at the business lunch. It’s a reminder that you can lead with style and substance.

THE CONTRAST

True performance is about adaptability. We sculpted the 39mm stainless steel case to bridge the gap between the archipelago and the conference room.

The brushed steel echoes the rugged strength of Swedish granite rocks, while the polished accents provide the sharp elegance required for the street. It is built to endure the elements, but designed to command the room.

THE PRECENSE

Your phone vibrates. The ocean crashes. We know which one we prefer. In a high-speed world, true luxury is focus. With 20 ATM water resistance and a precise GMT movement, the Koster gives you total control over your time.

It is built to handle the pressure whether that’s deep underwater or in a high-stakes meeting. No notifications, no noise, just you, on time and in the moment.

VINTAGE BY TRIWA

Looking for previous models or colors? Check out the Vintage site.

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