Esterbrook is thrilled to unveil the stunning collaboration with renowned Japanese artist, Kaoru, of BUNGUBOX.

In Japan, there are many beautiful words that have been used since ancient times to describe the beauty of nature. "Kachofugetsu" (Flower - Bird - Wind - Moon) is one of them. Inspired by this concept, the Kachofugetsu Flower Fountain Pen captures the essence of the Someiyoshino cherry tree in full bloom, with its barrel adorned with delicate blossoms.

Crafted from beautiful semi-translucent crackled pink acrylic, the pen features gold accents and a signature gold plated nib bearing the Japanese character for "flower". The unique design allows you to see through to the printed converter, which is adorned with its own pretty pink blossoms.

We offer you this beautiful "flower" that will never fade away.

Celebrating our first collaboration with BUNGUBOX, the Kachofugetsu Flower Fountain Pen is a limited edition piece that embodies the artistry and craftsmanship synonymous with both Esterbrook and BUNGUBOX.

About BUNGUBOX

BUNGUBOX is a boutique fountain pen and ink store founded by Kaoru Yamagishi on February 16, 2012, in Hamamatsu, Japan. Kaoru is a forerunner in the area of designing bespoke fountain pens and inks in Japan, taking high-quality Japanese fountain pens and transforming them into delightful pieces of practical artwork that carry a consistent story throughout their naming, packaging, and design.

Kaoru's mission is to educate, advocate, and preserve the wonderful human skill of handwriting, constantly coming up with new product stories to appeal to an ever-expanding audience.

We look forward to sharing the joy of hand-writing with you through the Kachofugetsu Flower Fountain Pen.

Gold-plated trim and a specially engraved nib featuring the Japanese character for “bird” bring an added sense of refinement, while a painted converter carries over from previous collaborations in the series. Fitted with a #6 JoWo German gold-plated steel nib and Esterbrook’s cushioned inner cap system, the Kachofugetsu "Flower" ensures a smooth, reliable writing experience. Available in EF, F, M, and B sizes, this limited edition embodies both artistry and performance, making it a meaningful piece for writers and collectors alike.

Esterbrook x Bungubox Estie Kachofugetsu "Flower" Specifications

- Pen Body and Cap Material: High Grade Acrylic Resin
- Trim: Gold
- Nib: #6 JoWo Gold-plated stainless steel nib engraved with the Japanese character for “bird.” (exclusive for this collection)
- Closure Type: Cushion Screw Cap
- Filling System: Cartridge or Converter (Converter Included)
- Max Converter Ink Capacity: 1.13 ml / 0.04 oz.
- Postable: Yes
- Cap Length: 2.74 in. / 69.6mm
- Pen Length Closed: 5.87 in. / 149.0mm
- Pen Length Open (Cap Off): 5.04 in. / 128.0mm
- Pen Length Posted: 6.56 in. / 166.5mm
- Pen Body Max Diameter (Barrel): 0.52 in. / 13.3 mm
- Pen Grip Section Diameter: 0.43 in. / 11.0mm
- Cap Diameter with Clip: 0.71 in. / 18.0mm
- Pen Total Weight: 0.88 oz. / 25.0g
- Gift Boxed
- Crafted in the USA

It's All in the Details

The Flower edition was especially exciting for our community for the small touches and details that made this model so unique.

From the pink translucent body to the painted converter to the cobranded nib, every details of this release was thoughtfully designed to become an instant heirloom for our customers.

For the first time, Cherry Blossom will also be joined by separately sold companion accessories, including blotter papers featuring artwork by Anne Nossack and a blossom pink ink, allowing collectors and daily writers alike to enjoy the full writing ritual around the release.

Esterbrook x Bungubox Estie Kachofugetsu Kingfisher

Esterbrook x Bungubox Estie Kachofugetsu Kingfisher Fountain Pen

Esterbrook x Bungubox Estie Kachofugetsu "Flower" Fountain Pen