Centennial Tsuge — Japanese boxwood aged a hundred years.
The classic wood of the Japanese seal, drawn from trees that have stood through a century of weather. Dense, fine-grained, and made to hold a precise line.
Why this material
- 100-year-old Japanese boxwood — exceptionally dense and even-grained.
- Warm yellow tone that deepens gracefully with years of use.
- Holds a crisp, precise impression generation after generation.
A Case as Crafted as the Seal Within.
Made exclusively for us from genuine kimono fabric, each case is patterned with a traditional Japanese motif — animals, flowers, flowing water — a small work of art that honours the seal it holds.
Who it’s for
Our main line for those who want a refined natural-material seal for everyday use — and a fitting piece for major personal and professional milestones.
Centennial Tsuge Tree Hanko
KAMAKURA SIGNET — The Masterpiece Collection
Rare, time-honoured natural materials, hand-finished to last for generations. Every seal is finished by hand in our Kamakura atelier — practising the craft since 1898, across four generations of the Tsukino family — by masters holding Japan’s First-Class National Certification, in the Tsukino Kissotai script found in no other workshop.
hand-finished to endure, and to be handed down — a personal mark made to outlast the page it is pressed upon.

















