Nagasawa Aqua Planet Fountain Pen
The Nagasawa Aqua Planet fountain pen is inspired by the image of a water-covered planet, where light, depth, and motion coexist in harmony. Its design evokes calm oceans and shifting reflections, creating a writing instrument that feels expansive, fluid, and visually immersive. It is ideal for those who seek a refined yet expressive daily writing experience.
This model is released as a Global Limited Edition, produced in a strictly limited quantity for international distribution. Each fountain pen belongs to a closed series, reinforcing its exclusivity and making it appealing both as a functional writing tool and as a modern collectible.
The Aqua Planet fountain pen is developed in collaboration with Sailor and customized exclusively for Nagasawa. Its translucent resin body features layered aquatic tones that suggest depth and movement, reminiscent of ink flowing through water. The pen offers excellent balance and comfort, suitable for extended writing sessions.
The NAGASAWA Aqua Planet Overseas fountain pen is released as a Global Limited Edition. Originally designed as an overseas-exclusive model sold outside Japan, it was available in Japan only for a very limited time, from July 21 (Marine Day) to August 31, 2025, adding to its rarity and international character.
At the heart of this fountain pen lies one of its most important elements: a 21K solid gold nib with a Naginata M profile, exclusively adjusted for NAGASAWA by the renowned master Nagahara-san. This special nib offers expressive line variation depending on writing angle, exceptional ink flow, and a uniquely smooth writing experience highly valued by experienced writers and collectors.
Technical specifications
- Global Limited Edition fountain pen
- 21K gold nib with Naginata M profile
- Exclusive nib adjustment by master Nagahara-san
- Translucent resin body with aquatic depth effect
- Cartridge and converter filling system
- Balanced design for comfortable long writing sessions
Brand philosophy
Based in Kobe, Nagasawa Bungu Center creates original fountain pens inspired by nature, culture, and everyday sensations. Manufactured in collaboration with Sailor, Nagasawa pens combine technical reliability with a strong visual identity, defined by the weathervane engraved on the nib.
“A writing experience that flows with the calm depth of water.”
Nagasawa Aqua Planet Pluma Estilográfica
