Ryusen Bonten Unryu VG10 Nickel 63-Layer Damascus Gyuto 240mm
Hand-Polished Wave Pattern Blade, Double-Bevel Edge,
Warranty Card with Individual Serial Number Included


※ This product is shipped as a finished knife with the handle attached and includes a warranty card with an individual serial number.


[About VG10 Stainless Steel]

VG10 is a premium Japanese stainless steel developed specifically for kitchen knives. It has a relatively high carbon content along with chromium, molybdenum, vanadium and cobalt, giving it a fine grain structure, strong edge retention and good resistance to rust and staining. When properly heat-treated, VG10 can reach high hardness while still being tough enough for daily kitchen work, so it takes a very sharp edge and holds it well without being overly difficult to sharpen. For this balance of sharpness, durability and ease of maintenance, VG10 is widely used by Japanese makers for professional- and enthusiast-grade knives.


[About Damascus Pattern Finish]

In Japanese kitchen knives, “Damascus” usually refers to a layered or patterned blade surface rather than a specific steel type. The flowing lines are created by combining and working multiple layers of steel, then revealing the pattern through polishing and etching. While the core steel determines the actual cutting performance, the Damascus finish adds visual depth and a sense of handcrafted character, which is why it is especially popular among knife enthusiasts and collectors.


[About Ryusen Hamono]

Ryusen Hamono is a family-run maker from Echizen, Fukui, carrying on 700 years of Echizen forged cutlery while operating as a modern factory brand. Founded by the Masutani family, the company grew from attaching blades to handles into an integrated workshop that now handles forging, grinding and finishing in-house. Their knives helped popularise stainless and multi-layer blades for home and professional use, and are known for combining high cutting performance with refined Damascus patterns and ergonomic handles.

Ryusen has received multiple Japanese Good Design Awards and is trusted by chefs worldwide. Even with modern steels like VG10 and powder steel, they keep a strong focus on hand work—fine grinding, hand-buffing and careful fit-and-finish—so each knife feels precise, comfortable, and ready for demanding kitchen use.


[About Ryusen Bonten Unryu]

Bonten Unryu is Ryusen’s flagship professional Damascus line, created for chefs who want maximum performance from VG10 steel. A VG10 core—rich in elements that enhance edge retention—is clad in dense, 63-layer nickel Damascus, then carefully forged to increase sharpness while keeping maintenance straightforward.

A special surface treatment and hand-buffing give the blade a deep, mirror-like sheen and swirling pattern that evokes “clouds and dragons.” Rounded spine and choil, double-bevel geometry and meticulous finishing make Bonten Unryu a favourite among chefs and enthusiasts seeking a refined VG10 workhorse with a distinctive, luxurious look.


[Notes after Purchasing a Saya (Sheath)]

1. Avoid long-term storage inside the saya

Even if the blade is completely dry, keeping it sealed inside the saya for a long time can trap moisture and cause rust.

For long-term storage, please remove the knife from the saya.


2. Be careful not to scratch the blade when inserting it

To help minimize scratches, the opening on the inside of our saya is finished with a velvet lining.

However, scratches may still occur due to careless insertion or removal, so please keep this in mind when purchasing.

As this is considered a matter of normal use and handling, we may not be able to repair or compensate for scratches that occur during use.