Eboya Hakobune Shinkai Deep Sea Small Fountain Pen
Eboya, the last factory in Japan dedicated to ebonite production. Each piece reflects a commitment to traditional craftsmanship and continuous innovation. The use of ebonite—one of the first polymers ever discovered—gives this pen a unique aesthetic: ebonite is produced by vulcanizing pure rubber with sulfur (between 25% and 50%), and its name comes from ebony, which it began to replace in certain applications due to its durability and natural shine. Engraved on its body, as in all pieces from the brand, is Eboya Made in Tokyo, a testament to its origin and excellence.
Concept and Design
The Hakobune model means “ark” or “ship” in Japanese, evoking protection, journey, and hope. The Shinkai Deep Sea version draws inspiration from the serenity and mystery of the ocean’s depths. Its marbled finish blends teal-blue with black, reminiscent of ocean currents, with each piece featuring a unique pattern. The marbling appears randomly, so some pens show more black while others display richer teal tones. Crafted without a clip, its uninterrupted silhouette enhances the purity of its form, echoing the smooth flow of water.
Functionality and Filling System
Fitted with a carefully tuned 14K gold nib, the Hakobune Shinkai Deep Sea Small delivers smooth, precise, and balanced writing. It uses a cartridge or converter filling system compatible with international brands such as Pelikan or Rotring (not compatible with Montblanc, Waterman, or Caran d’Ache). Each body is turned and polished in Tokyo by the artisans of Nikko Ebonite Manufacturing. The perfect assembly of all its parts, along with the beauty of its ebonite color, results in a pen of remarkable elegance and quality.
Package Contents
• Eboya Hakobune Shinkai Deep Sea Small Fountain Pen
• Standard international converter
• Ink cartridge (1 piece)
• Paulownia wood box (Inktraveler replaces the brand’s standard cardboard box with this exclusive case)
• Warranty
(Photographs are for reference only and may differ slightly from the final product.)
Technical Specifications
- Body material: ebonite
- Color: teal-blue marbled with black (Shinkai Deep Sea)
- Closed length: 128 mm
- Body diameter: 12,4 mm
- Filling system: cartridge/converter (international)
- Made in Tokyo, Japan
Care and Maintenance
Avoid direct exposure to sunlight or moisture and store in a dark place. Occasional cleaning with a soft cloth is enough to maintain its beauty.
Brand History & Philosophy
Eboya is the flagship brand of Nikko Ebonite Manufacturing, founded in 1952 and recognized as the last Japanese manufacturer specializing in ebonite. For decades, it has supplied this material to major writing instrument houses such as Sailor and Pilot. In 2009, it launched its own line of fountain pens, combining technical expertise with Japanese aesthetic sensibility. Until 2016, production was led by master turner Noritoshi Kanesaki, a disciple of the legendary nibmeister Kubo Kohei, bringing a unique artisanal legacy. Today, Eboya continues to create durable, comfortable writing instruments with an unmistakable finish.
"A treasure that unites Japanese spiritual tradition with excellence in writing."
