Masunaga

Overview

Masunaga Optical is a Japanese eyewear manufacturer founded in 1905, specializing in eyeglass frames including sunglasses. It pioneered the optical frame industry in Fukui by bringing craftsmen from Osaka and is known for in-house production covering all stages from raw materials to finishing. The company produces its own brands and operates retail stores while maintaining OEM capabilities, with a focus on traditional craftsmanship.

History

Founded in 1905 by Gozaemon Masunaga in Fukui, Japan, who invited skilled craftsmen from Osaka to establish the local eyewear industry. Key milestones include winning a Gold Medal in 1911, incorporation in 1957, opening retail stores like MASUNAGA 1905 in Tokyo in 2002, and receiving awards such as the Silmo d’Or Special Jury Prize in 2013. The company shifted from OEM to market-driven brand development in the 1970s and continues family leadership.

Product Lines

Manufacturing

All production is handled in-house at facilities in Fukui, Japan, from raw material processing to coloring and finishing. This integrated system stems from the company's founding guild system that developed local craftsmanship. It remains one of few Japanese firms mastering full in-house manufacturing.

Notable Products

• Centennial Model - Limited edition released for 100th anniversary in 2005, commemorating company heritage.
• MASUNAGA G.M.S. Limited 2013 - Award-winning frame that received Silmo d’Or Special Jury Prize.
• Time Capsule Frames - Eyeglasses placed in Osaka Expo 1970 time capsule.
• Imperial Presentation Frames - Three frames presented to Emperor during 1933 visit to Fukui.

Reputation

Masunaga is respected by eyewear professionals for its authentic Japanese craftsmanship and full in-house production in Fukui, positioning it as a pioneer in the industry. Enthusiasts praise the quality and heritage, though it remains somewhat niche outside Japan compared to larger global brands. Some note higher prices reflect the artisanal process without mass-market scale.