Masunaga's unwavering commitment to quality craftsmanship and premium materials has earned them a loyal following worldwide, with over a century of experience in producing premium eyewear.

In 1905, Masunaga premiered the production of glasses in Fukui. This has since transformed the region into one of the largest production regions for optical frames in the world. Today, the third generation Masunaga family continues to uphold the tradition of creating exceptional frames with their factory being one of the oldest handmade facilities in Japan.

Masunaga is the sole company in Japan that has a factory responsible for all processes, from raw material to production. While this approach may decrease productivity, it guarantees that each frame part meets the highest quality standard.

Craftsmanship is the defining feature of every Masunaga frame, with as many as 200 manual processes involved in creating a single frame. Every detail is meticulously considered, from the intricate pattern engravings on the temple to the monogrammed nose pads.

The frames are crafted from the highest grade Japanese acetate and titanium, making them both durable and lightweight. These materials not only ensure Masunaga frames are long-lasting but also provide a comfortable fit that can be worn for extended periods.

We invite you to browse our selection of Masunaga frames and experience for yourself the quality craftsmanship and attention to detail that sets them apart from the rest.