Nambu Ironware, Iron Sand Kettle, HIRANAMBU SAKURA, 1.4L, Seiryudo by Traditional Craftsman, Kosei Oikawa




All our products are handmade by skilled craftsmen. The actual form and color of the products may slightly differ from the photos. We appreciate your kind understanding.


We are delighted to present works from a personal studio: Seiryudo, led by traditional craftsman Kosei Oikawa, located in Oshu City, Iwate Prefecture.

Seiryudo was established in 1951.
Kosei Oikawa, the second generation in this family legacy, 

Crafted using the yaki-gata method, theis pieces showcases the beauty of cherry blossoms blooming in the distinctive 'marunambu-gata' shape.

The intricate design incorporates the motif of plucking, featuring a pounding hammer. This tool, famously held by Daikokuten, one of the Seven Lucky Gods, symbolizes wealth.

The handle is a meticulously crafted forging, its contours drawing a distinctive arc. It exudes a graceful charm reminiscent of the robe worn by a celestial maiden in a folk tale. Not only is it aesthetically pleasing, but it is also highly functional, providing an ergonomic grip. The handle's hollow design serves a dual purpose, allowing for easy handling while effectively dissipating heat buildup.


Cast iron, Iron sand, Steel (Handle), Polished after lacquer baking(Surface), Lacquer baking(Interior)

Suitable for all stovetops including induction

We have confirmed that the product can be used with 100V(200V NOT RECOMMEDED), but some models may not respond, so please contact the manufacturer.


Height: 22.5 cm
Width (including spout): approx. 20 cm
Girth diameter: 16 cm
Bottom diameter: approx. 9 cm
Weight: 1.7 kg
Capacity: approx. 1.4L (full)
Handle: Fixed


The interior is coated with Japanese lacquer. It will peel off a little with use, but this is normal.
When using induction heating, use low to medium heat.
Do not wash with detergent.
Do not wash using a sponge or scrubber.
Wipe off the excess water around the lid and other parts well, as discoloration and rusting can easily occur.
Please note that cooking near this pot may result in oil stains and discoloration due to oil splashes.
If the gas flame reaches the body of the pot, the part is likely to discolor, so be careful not to increase the heat too much.
Used over an open flame, the base will gradually turn white.

Iron Sand Kettle

The use of iron sand as part of the cast iron material reduces the carbon content, resulting in a material similar to that of Japanese swords, which is characterized by its hardness. It is made using an iron-making technique called WAZUKU(和銑), which is similar to the iron casting technique used in Japan before the 19th century.
It is a valuable material because the collection of iron sand suitable for casting has become scarce.
The degree of difficulty in casting and molding is extremely high, and the material and process are rarely manufactured in modern times. For this reason, it is rarely available on the market and there are few craftsmen who manufacture it.
Due to the characteristics of the aforementioned materials, the differences between tetsubin and tetsubin that are widely distributed today are as follows;
-The material is resistant to rust, and there is little elution of iron.
-Harder material, which is more susceptible to cracking when dropped or otherwise impacted.

Surface Finish
In order to emphasize the three-dimensional shading of the pattern, the surface is polished after baking the lacquer.


International Shipping Available

All items are eligible for international shipping.

Items are manufactured after receiving orders and will be shipped from Japan in about 1-2 months(Maximum 3 months for items labeled "made-to-order").
The schedule may be revised depending on destination countries, shipping companies, and changes of customs rules.


About Customs Duties and Taxes

Your final payment on our website includes the price of the product and shipping costs, but does not include any other fees required for international shipping, such as import taxes, customs duties, and other fees.

Please be aware that in all cases you are responsible for paying any import fees applied to your order.

These fees are set in detail for each country and region, and the rules are revised frequently. Please make sure that information is up to date when you place an order.

Refunds due to customs or import issues that are not our responsibility will not be accepted.

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