Ref. MDS300T · The Dark Surge 300 · Two Tone
42.9802°N · 16.0220°E · BLUE CAVE · BIŠEVO
● The current series · In stock · Ships in 24 hours

A dial like no
other

Croatian-designed dive watches inspired by the sea urchin exoskeletons of the Adriatic. Swiss Sellita movement, 316L steel, assembled in Germany.

€1,099 Two Tone
Ships in 24h from the Adriatic 2-year warranty 14-day returns

Three references. Six dials. One coastline

SEE ALL WATCHES →
The Dark Surge
Ref. MDS300

The Dark Surge

The Heritage Diver • 41mm • 300m

42.9802°N · 16.0220°E — Blue Cave, Biševo
In Stock - Ships in 24h VIEW THE WATCH →
The Seascape
Ref. MSS200

The Seascape

The Gentleman's Diver • 40mm • 200m

43.2554°N · 16.6338°E — Zlatni Rat, Bol
In Stock - Ships in 24h VIEW THE WATCH →
The Safe Harbour
Ref. MSH100

The Safe Harbour

The Tool Dress Watch • 39mm • 100m

43.5077°N · 16.4375°E — Riva, Split
In Stock - Ships in 24h VIEW THE WATCH →
The Dial

Inspired by
the sea urchin

Every Marnaut dial carries the radial pattern of the Adriatic sea urchin. The indexes rise from the surface like the urchin's exoskeleton — and glow through the night in Swiss Super-LumiNova.


The Adriatic dial

A select few wear the deep blue of the Adriatic itself — a colour that shifts through the day. Indigo in the morning calm, turquoise under the noon sun, ink at dusk. The same pattern, in the colour of the sea it came from.

Pattern Raised index markers
Lume Swiss C3 Super-LumiNova
Source Adriatic sea urchin exoskeleton
Designed

Croatia

Inspired by the raw, timeless beauty of the Adriatic Sea—capturing the spirit of Croatia in every watch.

43.2554°N · 16.6338°E
Moved

Switzerland

Powered by Sellita SW200-1 automatic movements.

Sellita · La Chaux-de-Fonds
Built

Germany

Hand-assembled by master watchmakers in Pforzheim, Germany.

Pforzheim · Baden-Württemberg
“Mario Jutronic’s marine-themed microbrand Marnaut is a breath of fresh ocean air. It was beginning to seem impossible that a retro-flavoured dive watch could bring anything new to the table, but one glimpse at a Marnaut dial and you must admit they’ve found a way.”

— Time+Tide Watches

Marnaut Boutique Showcase
Visit · By Appointment

Try one on, on the island where it was drawn.

Our boutique in Bol welcomes you for a quiet, unhurried look at every reference. Free coffee, a nice chat, and the chance to feel the sea urchin dial under the Croatian sun.

43.2554°N • 16.6338°E

Letters from the Adriatic.

New references, restocks and behind-the-bezel notes from Bol. About one every few months.