Masunaga

Masunaga glasses

Founded in 1905 by Gozaemon Masunaga in Fukui, Japan, the Masunaga house is among the pioneers of Japanese eyewear. More than a simple manufacturer, it is a true institution that helped establish the craft of eyeglass making in the region. From its very beginnings, the goal was clear: to produce flawless glasses capable of combining comfort, aesthetics, and durability.

What sets Masunaga apart from other brands is the extreme mastery of every stage of production, carried out entirely in-house. Unlike industrial production where tasks are fragmented, Masunaga controls everything, from the creation of prototypes to the final polishing, guaranteeing an exceptional level of quality. The artisans, often trained for several years, perpetuate a know-how passed down from generation to generation.

Masunaga women's glasses reflect the refinement and grace inherent to Japanese aesthetics. The shapes are crafted to flatter facial features, the colors range from classic deep black to elegant translucent shades, and the glossy or satin finishes are achieved through meticulous hand polishing.
Masunaga men's glasses, on the other hand, express strength and understated sophistication. They feature clean, sometimes angular lines, yet always balanced. The robustness of pure titanium, combined with precise assembly, makes them glasses that are as solid as they are elegant.

Masunaga sunglasses

Wearing Masunaga sunglasses means enjoying both optimal eye protection and a premium fashion accessory. The lenses are treated to block 100% of UVA and UVB rays, while enhancing contrast and reducing glare.

Masunaga does not simply manufacture glasses — it creates true functional works of art. The lines are clean, inspired by both retro design and contemporary trends. Frames are assembled from premium materials: Japanese acetate, surgical titanium, and stainless steel. Each pair is crafted to stand the test of time, both in structural quality and timeless style.

Masunaga sunglasses for women

Women's models display a refined elegance. Oversized shapes offer broader protection while asserting a glamorous look, while butterfly or round shapes add a chic retro touch. Japanese acetate, derived from natural cotton fibers, brings depth and brilliance to colors. Titanium temples, fine and lightweight, ensure maximum comfort even during extended wear. The hinges are integrated with goldsmith-level precision, guaranteeing smooth yet resilient opening and closing.

Masunaga sunglasses for men

Men's models favor a clean, functional style without sacrificing refinement. Aviator, square, and panto shapes suit different face morphologies. Titanium, used for the frame structure, offers both lightness and corrosion resistance, making it ideal for summer and seaside use. Polarized lenses reduce distracting reflections, particularly on water or the road, providing superior visual comfort.

Masunaga sunglasses best sellers

Masunaga's best-selling sunglasses are celebrated for their style, comfort, and durability.

Women's best seller – Model Monk

The Masunaga Monk embodies the feminine DNA of the brand. Its round metal frame is paired with engraved titanium temples, creating an elegant contrast between organic material and precious metal. The tinted lenses, available in several shades, are category 3, ideal for intense sunlight. The hand-polished finish gives each pair a unique brilliance.

Men's best seller – Model 070SG

The Masunaga 070SG is an iconic model with a timeless design. Its brushed titanium structure provides an incomparable sense of lightness, while the high-definition lenses deliver sharp and restful vision. It is a favored choice for men and women alike who want to combine optical performance with understated elegance.

Masunaga eyeglasses

Masunaga eyeglasses are designed to accompany daily life with style and comfort. Entirely made in Japan, they benefit from rigorous quality control at every stage. Their distinctive feature: most models are unisex, able to be worn by both women and men, depending on the size and color chosen.

The design stands out for its timeless shapes — round, square, rectangular — and for the exceptional work done on materials. Japanese acetate is polished for several days to achieve a silky touch, while titanium is shaped with micrometric precision.

Masunaga eyeglasses for women

Women's frames play on finesse and lightness. Soft shapes soften facial features, colors can range from classic black to transparent or sophisticated tortoiseshell shades. Some frames incorporate metallic details on the temples, adding a subtle jewellery-like touch.

Masunaga eyeglasses for men

Men's models come in full-rim, semi-rimless, or rimless frames. Straight, precise lines reflect a confident masculinity, while comfort is ensured by ultra-lightweight materials such as titanium. Matte or brushed finishes enhance the premium look while remaining understated.

Masunaga eyeglasses best sellers

The brand counts among its creations models that have become true benchmarks.

Women's best seller – Model GMS123

The GMS123 captivates with its round shape, crafted in thick, glossy acetate. The temples, sometimes reinforced with metal, ensure stability and comfort. It is a model that works just as well in a professional environment as in a casual setting.

Men's best seller – Model GMS-126T

The GMS-126T is the archetype of the elegant men's glasses. Its fine titanium frame, combined with acetate rims, blends robustness and lightness. Perfect for extended wear, it also offers a refined and understated style.

FAQ

The Masunaga FAQ provides detailed answers about the brand, its history, and its distinctive features.

Is Masunaga a luxury brand?
Yes, Masunaga is undeniably a luxury brand. It stands out for its 100% Japanese craftsmanship, noble materials, and demanding quality control. Each pair of glasses requires several weeks of work and involves more than 200 manufacturing steps. The finishes are done by hand, guaranteeing unique and durable products. This level of excellence justifies their premium positioning.

What does the name Masunaga mean?
Masunaga is simply the family name of its founder, Gozaemon Masunaga. But over time, this name has become a mark of quality and authenticity in the world of eyewear, recognized by connoisseurs and opticians worldwide.

Who owns Masunaga?
Masunaga Optical remains to this day an independent family-owned company, led by the descendants of its founder. This strategic choice allows the original spirit to be preserved, based on artisanal excellence and a refusal of mass production.

Contact our qualified opticians for your questions about prescription lenses

At Céline Roland opticien lunetier, we are committed to offering you only 100% authentic frames sourced directly from Masunaga's workshops in Japan. Our qualified opticians, trained in the latest optical innovations, guide you in choosing your prescription lenses and frames.

Masunaga eyeglasses are designed to provide exceptional visual comfort while reflecting timeless elegance. Thanks to exceptional materials such as pure titanium and hand-polished Japanese acetate, they are lightweight, durable, and comfortable for everyday wear. Whether you prefer a discreet and minimalist style or a bolder design, we will guide you to the frame that perfectly matches your prescription, your face shape, and your personality.

In store, we ensure that every pair is perfectly adjusted for optimal comfort, and we guarantee personalized follow-up throughout the life of your glasses.