Specifications

Brand: Sumimoe Studio

Model: Raden

Body Material: Mother-of-Pearl (Raden) Inlay

Filling System:Cartridge or Converter (International Cartridge or Converter)

Nib: Engeika Jowo #6 Stainless Steel Gold-Plated Broad Nib

Color: Black/Raden

Length: 156 mm

Weight: 89 g

PRESENTATION 

Pen + Box + Converter

Condition

Brand New

ABOUT SUMIMOE STUDIO FOUNTAIN PEN

Sumimoe Studio is a Japanese Pen Studio that creates different pens and design. While the history of the studio itself is relatively unknown, the pens they have are beautifully crafted.

This is a Sumimoe Studio King Pen featuring mother-of-pearl inlay combined with resin and lacquer showcases a harmonious blend of natural beauty and refined craftsmanship. The pen’s body is crafted from high-quality resin, providing a smooth, durable base, while layers of lacquer enhance its depth, shine, and overall elegance. Carefully set mother-of-pearl pieces are inlaid into the surface, creating a shimmering, iridescent effect that catches the light and adds a unique, luxurious character to the pen.

The combination of resin and lacquer not only highlights the natural luster of the mother-of-pearl but also ensures long-lasting durability and a comfortable feel in hand. 

ENGEIKA JOWO #6 NIB

The Jowo #6 stainless steel nib is highly regarded for its durability, precision, and consistent writing performance. Made in Germany with meticulous engineering, this steel nib has become a favorite among modern fountain pen makers because it delivers an exceptionally smooth writing experience at a reliable and accessible level.

Despite being made of stainless steel, the nib offers a refined glide across the page with a clean, steady ink flow that suits both everyday writing and more expressive note-taking. Steel gives the nib a firm, controlled feel, allowing for crisp lines without the softness or flex of gold. This firmness makes it excellent for writers who prefer precision and consistency over line variation.

The stainless steel construction also ensures long-term durability, resistance to corrosion, and dependable performance even under heavy use. Many independent manufacturers choose the Jowo #6 stainless steel nib because it is easy to maintain, easy to replace, and consistently performs well straight out of the box.

With its balanced shape, reliable feed system, and compatibility across many custom and production pens, the Jowo #6 stainless steel nib stands as a trusted, high-performing option for writers who value smoothness, stability, and lasting quality in their daily fountain pen.