Van Dieman's & Pen Chalet's World Oceans - Atlantic: Portuguese Man of War

The World Oceans Collection

The World Oceans Collection is a year-long collaboration between Van Dieman’s Ink and Pen Chalet, celebrating the vastness, diversity, and quiet power of the world’s oceans. Each release explores a single ocean or sea through colour, movement, and light, expressed in carefully formulated fountain pen inks.

Designed as a cohesive series, the collection pairs a unified nautical box with distinctive bottle labels that allow each ink to speak for itself. Flowing currents, shifting depths, and reflective shimmer echo the way oceans move and change, from tranquil shallows to immense, unknowable depths.

Every ink is handmade in Tasmania using distilled Tasmanian water, crafted to balance beauty with reliable everyday performance.

Atlantic Ocean

The Atlantic is a corridor of movement.

Stretching between continents and binding histories together, it is an ocean defined by exchange, migration, and relentless current. From the cold, slate waters of the North Atlantic to the deep cobalt expanse of the South, its character shifts with latitude, yet always carries a sense of power beneath the surface.

The Atlantic is shaped by contrast. Storm-forged swells roll in from the west, while luminous tropical shallows shimmer along equatorial coasts. The Gulf Stream threads warmth northward, carving climate and culture in its wake. Along its margins lie rugged cliffs, ancient trade routes, and waters that have carried explorers, empires, and ideas across centuries.

It is not the largest ocean, but it may be the most storied.

Restless. Historic. Commanding.
An ocean that connects the world.

Atlantic – Portuguese Man O’ War

Beautiful. Lethal. Unforgettable.

Atlantic – Portuguese Man O’ War is inspired by the iridescent drift of one of the ocean’s most mesmerising creatures. The base opens as a vivid marine violet, saturated and electric, with deep magenta undertones that pool into richer plum shadows where the ink gathers.

Then the transformation begins. On Tomoe River, a striking green-gold sheen surges across heavier strokes, spreading in luminous waves over the violet base like sunlight refracting through a translucent sail. In angled light the sheen becomes almost metallic, bright and high-contrast, shifting between chartreuse and burnished gold. On Clairefontaine and Rhodia, the base colour reads smoother and more velvety, while flashes of green emerge along pooled edges and layered strokes.

In shade it settles into a bold, saturated purple with subtle tonal variation. In direct light it becomes theatrical and dynamic, alive with contrast between glowing green sheen and radiant violet beneath.

Vivid. Iridescent. Dangerous.
An Atlantic drifter captured in ink.