Esterbrook is thrilled to release their latest collaboration with BUNGUBOX Japan: the Kachofugetsu Kingfisher Fountain Pen—a celebration of beauty, nature, and the art of writing.

In Japanese, Kachofugetsu (花鳥風月)—Flower, Bird, Wind, and Moon—is a timeless expression honoring the natural world and its seasonal rhythms. Each release in this series is inspired by one of these elements and designed in collaboration with Kaoru Yamagishi, founder of BUNGUBOX, one of Japan’s most beloved pen boutiques. The new Kingfisher Edition pays tribute to the vibrant bird known for its jewel-like feathers and graceful flight along riversides.

Crafted in the U.S. from DiamondCast resin, the body of the pen features a stunning interplay of deep teal, warm copper, and soft black—mirroring the iridescent elegance of the kingfisher in motion. Gold-plated trim and a matching converter complete the design, along with a special gold-plated nib engraved with the Japanese character for “bird.”

Every detail of this collection has been thoughtfully considered for to bring the ethos of this limited edition collection to life.

With a #6 JoWo German gold-plated steel nib and Esterbrook’s renowned cushioned inner cap system, this pen promises a smooth writing experience. The Estie fills via standard international cartridge or converter (included).

We do our best to photograph the pens to show how they will appear in person, but due to the nature of this unique material, there will be variation in the patterns and colors seen here. This adds an element of uniqueness to the pen, with no two patterns being exactly the same. We cannot honor special requests.