K-Series Eyeglasses Collection

The Masunaga K Series represents the pinnacle of Japanese craftsmanship fused with contemporary design. Handcrafted in Fukui, Japan, each pair takes nearly six months to complete, passing through over 200 meticulous steps guided by 150 skilled artisans.

The K Series is known for its refined silhouettes, intricate detailing, and timeless appeal—eyewear that balances tradition with modern sophistication. Built without shortcuts and with pure precision, these frames embody Masunaga’s philosophy of excellence since 1905.