Esterbrook x Bungubox Estie DiamondCast Fountain Pen - Kingfisher, Special Edition

The Esterbrook × Bungubox Estie Kingfisher is a tribute to the radiant beauty of the kingfisher bird, inspired by the Japanese concept of Kachōfūgetsu — “flowers, birds, wind, and moon” — which honors the harmony found in nature.

Made in the U.S. from exclusive DiamondCast resin, each pen is truly unique. Swirls of rich teal, burnished copper, and deep black reflect the iridescent plumage of this striking bird. Gold-plated accents, a custom-painted converter, and a distinctive nib engraved with the Japanese kanji for “bird” enhance the pen’s elegant design.

With its signature Estie profile, the pen offers both balance and comfort in hand. A cushioned inner cap ensures a snug seal, while the reliable JoWo #6 nib  — delivers a smooth writing experience. The cartridge/converter system provides flexibility for everyday use.

The Kingfisher is more than a writing instrument — it’s a poetic homage to nature, transforming each stroke into a graceful expression of style and craft.