ABOUT

The Foundation of JapaneseEyewear Craftsmanship

The Foundation ofJapanese EyewearCraftsmanship

In the snowy heart of Fukui Prefecture — Japan’s proud home of eyewear production — Gozaemon Masunaga built a new industry from the ground up. He brought in master artisans from Osaka and Tokyo and created a workshop system that encouraged them to compete, learn, and grow together.Their dedication and skill transformed Fukui into the birthplace of Japan’s eyewear production. Today, Fukui-made eyewear stands among the most respected in the world for its precision and comfort.

Building QualityThrough Integration

Masunaga Optical designs, engineers, and manufactures every frame in-house — through more than 400 precise steps, from concept to completion. We also sell directly through our own boutiques, keeping a close connection with our customers. By controlling every process, we improve each detail, ensure flawless quality, and deliver the finest eyewear experience possible. Our single purpose drives us every day: to craft exceptional eyewear that endures in both quality and comfort.

Rooted in Tradition, LeadingThrough Innovation

Rooted in Tradition,Leading ThroughInnovation

Masunaga evolves tradition into innovation. We transform eyewear from medical tools into fashion, and from fashion into everyday art that enriches life. We expand overseas, develop new materials, merge traditional and modern techniques, and embrace advanced digital technologies. Each breakthrough builds on our founding spirit — the craftsmanship that defines Masunaga and keeps us at the forefront of global eyewear design.