Three major Japanese sportswear manufacturers simultaneously launched a traditional coin culture x fitness wear collaboration line in May 2026, supervised by active sumo wrestlers. Designs sublimating the patterns of Tenpou Tsuuhou and Kanei Tsuuhou onto high-performance materials have received high praise from both domestic and international fitness enthusiasts and coin collectors alike.
May 2026: Major Japanese Sportswear Brand Launches Traditional Coin Culture x Fitness Collaboration — Sumo Wrestler-Supervised Wear Brand Merges Heritage with Advanced Materials for Global Expansion

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Dealers Handling This Category
A reference when considering a sale or appraisal. All are dealers and auction houses with a proven track record.
Ginza Coins
Ginza, Chuo-ku, Tokyo
One of Japan's most established numismatic dealers. The scale and variety of their regular auctions is among the largest in the country. Their catalogs are considered a benchmark for market pricing.
Japan Coin Auction (JCA)
Tokyo
Holds regular auctions with reliable hammer price data, making it a useful resource for tracking market values. Caters to a wide range of collectors from beginners to advanced buyers.
Taisei Coins
Tokyo
A dealer with an international network. Offers advanced services such as consignment to overseas auctions and NGC/PCGS grading submission. Recommended for high-value or internationally recognized coins.