Japan auctions

Inside the Japan auctions

Several times each year, a few selected specialized dealers gather across Japan to participate in private auctions dedicated to Japanese swords, armor, netsuke, Noh masks, ukiyo-e, fittings, and other historical works of Japanese art.
These events provide access to pieces that rarely appear on the open market. They are highly specialized and, in many cases, difficult to access from Europe, even for professionals in the trade. Our direct presence in Japan allows us to work within these circles and maintain relationships with dealers, restorers, collectors, and specialists closely connected to the preservation of Japanese art and history.
At these auctions, pieces are examined with particular attention to authenticity, condition, provenance, workmanship, and historical significance. Many come from private collections and established sources that seldom reach the international market.
Our work, however, is not limited to Japan. Throughout the year we also travel across Europe in search of important Japanese works, visiting auctions, antique fairs, specialist markets, private collections, and galleries. Some of the most interesting pieces are often found far from the places where one would normally expect them.
This combination of direct access in Japan and continuous sourcing throughout Europe allows Supein Nihonto to select swords, armor, netsuke, Noh masks, ukiyo-e, fittings, and other works of Japanese art from a wide range of professional and private sources.
For us, sourcing is not simply about finding objects. It is about having access to the right places, knowing what to look for, and recognizing the pieces that are truly worth acquiring.
Supein nihonto armadura y socios
A closer look into one of Japan’s exclusive antique sword and armor auctions reserved for professional dealers.
Biannual dealers Tokio auction
Biannual dealers Tokio auction 2
Biannual dealers Tokio auction 3

What our customers say

SupeinNihonto was born from years of dedication to traditional Japanese martial arts such as Aikido, Kendo, and Iaido, and a deep passion for collecting authentic samurai weapons and armor.
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5.0
Emanuele S. profile picture
Emanuele S.
6 months ago
I had an excellent experience with Supein Nihoto. I purchased a katana and a wakizashi, and both pieces are truly beautiful — carefully selected and of remarkable quality. You can immediately see the attention to detail and the seller’s passion for what he offers.

The packaging was also exceptional: all the documentation was perfectly arranged in a refined envelope, which added a very elegant touch to the whole experience.

As a thoughtful gesture, he even included a small katana kake stand as a gift, which I greatly appreciated.

Beyond the objects themselves, the seller was very helpful, responsive, and clearly knowledgeable. His selection is outstanding, and you can tell he deals in genuinely fine items.

Highly recommended — I would definitely purchase from Supein Nihoto again
Dimitrios K. S. profile picture
Dimitrios K. S.
8 months ago
Legit dealer of Japanese treasures ! This man loves his work is not just reselling items, at first he is a collector and does this out of true passion.
Burke J. profile picture
Burke J.
9 months ago
I received a beautiful tokubetsu hozon nihonto for Christmas from Supein. Actually my wife purchased the sword after receiving some helpful hints and recommendations lol. She knows absolutely nothing about nihonto but Supein walked her through everything honestly and I ended up with something beyond my dreams and expectations, honestly. The packing was exceptional, shipping fast and the sword itself a literal work of art. Supein has a lifetime customer now as my collection grows. Thank you!
Anton S. profile picture
Anton S.
9 months ago
Great packaging and quick delivery — thank you! The item’s quality was exactly as described. I’m very pleased with the purchase.
Nathan C. profile picture
Nathan C.
1 year ago
Excellent service, great communication, object exactly as described. Recommended seller! +++
Javier L. profile picture
Javier L.
2 years ago
I had been looking for a tachi with a lot of curvature for a long time and I called Supein Nihonto. They didn't have any tachi with the sori I was looking for, but I was treated with a lot of love and professionalism and we were talking for a long time. The next day I received a call from the shop, telling me that they had received new swords and that there was a tachi with a lot of sori. That same afternoon he already had a lot of photos of the sword and its measurements. I found the price good, especially if I compared it to other Spanish sellers of Nihonto. The shipment took a day and the package arrived in perfect condition, as the person in charge of the packaging puts a lot of effort into the work and the result is a strong packaging. Without a doubt, Supein Nihonto is my 100% recommendation!

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Authentic Japanese swords, samurai armor, and historical artifacts directly sourced from Japan for collectors and enthusiasts worldwide.

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