Imperial Precision: Inside the 120-Year Handcrafted Heritage of Masunaga since 1905

Fukui’s Legendary Optical Artistry, Multi-Laminated Acetates, and Pure Titanium Engineering

True luxury is defined by uncompromising time, skill, and heritage. Founded in Fukui, Japan, over 120 years ago by Gozaemon Masunaga, Masunaga since 1905 remains the absolute benchmark of global optical mastery. As the only Japanese manufacturer maintaining complete in-house control over every single stage of production—from raw titanium forging to hand-polishing—Masunaga subjects each individual frame to up to 200 distinct manual steps. This historic devotion to perfection famously earned the brand historical commissions for the Japanese Imperial Family.

Every piece in the Masunaga since 1905 collection showcases breathtaking technical details, including solid pure titanium chassis, custom multi-laminated Japanese acetates, intricate fountain-pen engraved temples, and durable seven-barrel hinges. Models like the GMS-126T and GMS-128T marry classical panto silhouettes with modern titanium engineering, creating optical frames that feel featherlight yet structurally indestructible. Investing in Masunaga eyewear means acquiring a piece of living optical history designed to transcend transient trends and last a lifetime.